diff --git a/src/main.tsx b/src/main.tsx
index f01394bfa..35a9f7f43 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -403,12 +403,11 @@ class TextAreaInput extends React.Component<{}, {}> {
             if (e.code == "Tab") {
                 e.preventDefault();
                 if (lastTab) {
-                    GlobalModel.submitCommand("compgen", null, [curLine], {"comppos": String(curLine.length), "compshow": "1", "nohist": "1"});
+                    GlobalModel.submitCommand("compgen", null, [curLine], {"comppos": String(curLine.length), "compshow": "1", "nohist": "1"}, true);
                     return;
                 }
                 else {
-                    GlobalModel.submitCommand("compgen", null, [curLine], {"comppos": String(curLine.length), "nohist": "1"});
-                    GlobalModel.clearInfoMsg(true);
+                    GlobalModel.submitCommand("compgen", null, [curLine], {"comppos": String(curLine.length), "nohist": "1"}, true);
                     return;
                 }
             }
diff --git a/src/model.ts b/src/model.ts
index c3f7f7434..3d974ca7c 100644
--- a/src/model.ts
+++ b/src/model.ts
@@ -587,8 +587,7 @@ class InputModel {
                 return;
             }
             this.clearCurLine();
-            GlobalModel.clearInfoMsg(true);
-            GlobalModel.submitRawCommand(commandStr, true);
+            GlobalModel.submitRawCommand(commandStr, true, true);
         })();
     }
 
@@ -1012,7 +1011,7 @@ class Model {
         if ("window" in update) {
             this.updateWindow(update.window, false);
         }
-        if ("info" in update) {
+        if (interactive && "info" in update) {
             let info : InfoType = update.info;
             this.flashInfoMsg(info, info.timeoutms);
         }
@@ -1146,13 +1145,16 @@ class Model {
         return rtn;
     }
 
-    submitCommandPacket(cmdPk : FeCmdPacketType) {
+    submitCommandPacket(cmdPk : FeCmdPacketType, interactive : boolean) {
         let url = sprintf("http://localhost:8080/api/run-command");
         fetch(url, {method: "post", body: JSON.stringify(cmdPk)}).then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
             mobx.action(() => {
                 let update = data.data;
                 if (update != null) {
-                    this.runUpdate(update, true);
+                    this.runUpdate(update, interactive);
+                }
+                if (interactive && (update == null || update.info == null)) {
+                    GlobalModel.clearInfoMsg(true);
                 }
             })();
         }).catch((err) => {
@@ -1160,7 +1162,7 @@ class Model {
         });
     }
 
-    submitCommand(metaCmd : string, metaSubCmd : string, args : string[], kwargs : Record<string, string>) {
+    submitCommand(metaCmd : string, metaSubCmd : string, args : string[], kwargs : Record<string, string>, interactive : boolean) {
         let pk : FeCmdPacketType = {
             type: "fecmd",
             metacmd: metaCmd,
@@ -1168,10 +1170,10 @@ class Model {
             args: args,
             kwargs: Object.assign({}, this.getClientKwargs(), kwargs),
         };
-        this.submitCommandPacket(pk);
+        this.submitCommandPacket(pk, interactive);
     }
 
-    submitRawCommand(cmdStr : string, addToHistory : boolean) {
+    submitRawCommand(cmdStr : string, addToHistory : boolean, interactive : boolean) : void {
         let pk : FeCmdPacketType = {
             type: "fecmd",
             metacmd: "eval",
@@ -1181,7 +1183,7 @@ class Model {
         if (!addToHistory) {
             pk.kwargs["nohist"] = "1";
         }
-        this.submitCommandPacket(pk)
+        this.submitCommandPacket(pk, interactive)
     }
 
     loadSessionList() {
@@ -1326,24 +1328,36 @@ class InputClass {
     constructor() {
     }
 
+    clearCmdInput() : void {
+        mobx.action(() => {
+            GlobalModel.clearInfoMsg(true);
+            GlobalModel.clearCurLine();
+        })();
+    }
+
     switchSession(session : string) {
-        GlobalModel.submitCommand("session", null, [session], {"nohist": "1"});
+        GlobalModel.submitCommand("session", null, [session], {"nohist": "1"}, false);
+        this.clearCmdInput();
     }
 
     switchScreen(screen : string) {
-        GlobalModel.submitCommand("screen", null, [screen], {"nohist": "1"});
+        GlobalModel.submitCommand("screen", null, [screen], {"nohist": "1"}, false);
+        this.clearCmdInput();
     }
 
     createNewSession() {
-        GlobalModel.submitCommand("session", "open", null, {"nohist": "1"});
+        GlobalModel.submitCommand("session", "open", null, {"nohist": "1"}, false);
+        this.clearCmdInput();
     }
 
     createNewScreen() {
-        GlobalModel.submitCommand("screen", "open", null, {"nohist": "1"});
+        GlobalModel.submitCommand("screen", "open", null, {"nohist": "1"}, false);
+        this.clearCmdInput();
     }
 
     closeScreen(screen : string) {
-        GlobalModel.submitCommand("screen", "close", [screen], {"nohist": "1"});
+        GlobalModel.submitCommand("screen", "close", [screen], {"nohist": "1"}, false);
+        this.clearCmdInput();
     }
 };
 
diff --git a/src/session.ts b/src/session.ts
deleted file mode 100644
index 6ac30c981..000000000
--- a/src/session.ts
+++ /dev/null
@@ -1,390 +0,0 @@
-import * as mobx from "mobx";
-import {sprintf} from "sprintf-js";
-import {boundMethod} from "autobind-decorator";
-import {handleJsonFetchResponse} from "./util";
-import {TermWrap} from "./term";
-import {v4 as uuidv4} from "uuid";
-import type {SessionDataType, WindowDataType, LineType, RemoteType, HistoryItem, RemoteInstanceType, CmdDataType, FeCmdPacketType} from "./types";
-
-var GlobalUser = "sawka";
-
-type WindowType = {
-    sessionid : string,
-    windowid : string,
-    name : string,
-    curremote : string,
-    lines : mobx.IObservableArray<LineType>,
-    linesLoading : mobx.IObservableValue<boolean>,
-    version : number,
-};
-
-function makeTermKey(sessionId : string, cmdId : string, windowId : string, lineid : number) : string {
-    return sprintf("%s/%s/%s/%s", sessionId, cmdId, windowId, lineid);
-}
-
-function getLineId(line : LineType) : string {
-    return sprintf("%s-%s-%s", line.sessionid, line.windowid, line.lineid);
-}
-
-class Session {
-    sessionId : string;
-    name : string;
-    windows : WindowType[];
-    activeWindowId : mobx.IObservableValue<string> = mobx.observable.box(null);
-    termMap : Record<string, TermWrap> = {};
-    termMapById : Record<string, TermWrap> = {};
-    history : HistoryItem[] = [];
-    loading : mobx.IObservableValue<boolean> = mobx.observable.box(true);
-    remotes : RemoteInstanceType[] = [];
-    globalRemotes : RemoteType[];
-    cmds : CmdDataType[];
-
-    constructor() {
-    }
-
-    getWindowCurRemoteData(windowid : string) : RemoteInstanceType {
-        let win = this.getWindowById(windowid);
-        if (win == null) {
-            return null;
-        }
-        let rname = win.curremote;
-        let sessionScope = false;
-        if (rname.startsWith("^")) {
-            rname = rname.substr(1);
-            sessionScope = true;
-        }
-        for (let i=0; i<this.remotes.length; i++) {
-            let rdata = this.remotes[i];
-            if (sessionScope && rdata.sessionscope && rdata.name == rname) {
-                return rdata;
-            }
-            if (!sessionScope && !rdata.sessionscope && rdata.name == rname && rdata.windowid == windowid) {
-                return rdata;
-            }
-        }
-        for (let i=0; i<this.globalRemotes.length; i++) {
-            let gr = this.globalRemotes[i];
-            if (gr.remotename == rname) {
-                return {riid: "", sessionid: this.sessionId, windowid: windowid, remoteid: gr.remoteid,
-                        name: rname, state: gr.defaultstate, sessionscope: sessionScope};
-            }
-        }
-        return null;
-    }
-
-    getWindowById(windowid : string) : WindowType {
-        for (let i=0; i<this.windows.length; i++) {
-            if (this.windows[i].windowid == windowid) {
-                return this.windows[i];
-            }
-        }
-        return null;
-    }
-
-    getCurWindow() : WindowType {
-        return this.getWindowById(this.activeWindowId.get());
-    }
-
-    setWindowInSession(win : WindowDataType) {
-        mobx.action(() => {
-            for (let i=0; i<this.windows.length; i++) {
-                if (this.windows[i].windowid == win.windowid) {
-                    let curWindow = this.windows[i];
-                    curWindow.name = win.name
-                    curWindow.curremote = win.curremote;
-                    curWindow.lines.replace(win.lines || []);
-                    curWindow.linesLoading.set(false);
-                    curWindow.version = win.version;
-                    return;
-                }
-            }
-            this.windows.push(winDataToWindow(win));
-        })();
-    }
-
-    loadWindowLines(windowid : string) {
-        let window = this.getWindowById(windowid);
-        if (window == null) {
-            console.log(sprintf("cannot load lines on window=%s, window not found", windowid));
-            return;
-        }
-        if (window.linesLoading.get()) {
-            return;
-        }
-        window.linesLoading.set(true);
-        
-        let usp = new URLSearchParams({sessionid: this.sessionId, windowid: windowid});
-        let url = new URL(sprintf("http://localhost:8080/api/get-window?") + usp.toString());
-        fetch(url).then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
-            if (data.data == null) {
-                console.log("null window returned from get-window");
-                return;
-            }
-            this.setWindowInSession(data.data);
-            return;
-        }).catch((err) => {
-            console.log(sprintf("error getting window=%s lines", windowid), err)
-        });
-    }
-
-    getCmd(cmdId : string) : CmdDataType {
-        if (!cmdId) {
-            return null;
-        }
-        for (let i=0; i<this.cmds.length; i++) {
-            if (this.cmds[i].cmdid == cmdId) {
-                return this.cmds[i];
-            }
-        }
-        return null;
-    }
-
-    getRemote(remoteId : string) : RemoteType {
-        if (!remoteId) {
-            return null;
-        }
-        for (let i=0; i<this.globalRemotes.length; i++) {
-            if (this.globalRemotes[i].remoteid == remoteId) {
-                return this.globalRemotes[i];
-            }
-        }
-        return null;
-    }
-
-    setActiveWindow(windowid : string) {
-        this.activeWindowId.set(windowid);
-        this.loadWindowLines(windowid);
-    }
-
-    submitCommand(windowId : string, commandStr : string) {
-        let url = sprintf("http://localhost:8080/api/run-command");
-        let data : FeCmdPacketType = {type: "fecmd", sessionid: this.sessionId, windowid: windowid, cmdstr: commandStr, userid: GlobalUser, remotestate: null};
-        let curWindow = this.getCurWindow();
-        if (curWindow == null) {
-            throw new Error(sprintf("invalid current window=%s", this.activeWindowId));
-        }
-        let rstate = this.getWindowCurRemoteData(this.activeWindowId.get());
-        if (rstate == null) {
-            throw new Error(sprintf("no remotestate found for windowid:%s (remote=%s), cannot submit command", windowid, curWindow.curremote));
-        }
-        data.remotestate = {remoteid: rstate.remoteid, remotename: rstate.name, ...rstate.state};
-        fetch(url, {method: "post", body: JSON.stringify(data)}).then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
-            mobx.action(() => {
-                if (data.data != null && data.data.line != null) {
-                    let line = data.data.line;
-                    line.isnew = true;
-                    this.addLine(line);
-                }
-                if (data.data != null && data.data.cmd != null) {
-                    this.cmds.push(data.data.cmd);
-                }
-            })();
-        }).catch((err) => {
-            console.log("error calling run-command", err)
-        });
-    }
-
-    addLine(line : LineType) {
-        if (line.sessionid != this.sessionId) {
-            return;
-        }
-        let window = this.getWindowById(line.windowid);
-        if (window == null) {
-            return;
-        }
-        mobx.action(() => {
-            let lines = window.lines;
-            let lineIdx = 0;
-            for (lineIdx=0; lineIdx<lines.length; lineIdx++) {
-                let lineId = lines[lineIdx].lineid;
-                if (lineId == line.lineid) {
-                    window.lines[lineIdx] = line;
-                    return;
-                }
-                if (lineId > line.lineid) {
-                    break;
-                }
-            }
-            if (lineIdx == lines.length) {
-                window.lines.push(line);
-                return;
-            }
-            window.lines.splice(lineIdx, 0, line);
-        })();
-        return;
-    }
-
-    addToHistory(hitem : HistoryItem) {
-        this.history.push(hitem);
-    }
-
-    getNumHistoryItems() : number {
-        return this.history.length;
-    }
-
-    getHistoryItem(index : number) : HistoryItem {
-        if (index == 0) {
-            return null;
-        }
-        if (index > 0) {
-            if (index > this.history.length-1) {
-                return null;
-            }
-            return this.history[index];
-        }
-        let absIndex = Math.abs(index);
-        if (absIndex > this.history.length) {
-            return null;
-        }
-        return this.history[this.history.length-absIndex];
-    }
-
-    getTermWrapByLine(line : LineType) : TermWrap {
-        if (!line.cmdid) {
-            return null;
-        }
-        let termKey = makeTermKey(line.sessionid, line.cmdid, line.windowid, line.lineid);
-        let termWrap = this.termMap[termKey];
-        if (termWrap != null) {
-            return termWrap;
-        }
-        let cmd = this.getCmd(line.cmdid);
-        if (!cmd) {
-            return null;
-        }
-        termWrap = new TermWrap(line.sessionid, line.cmdid, cmd.remoteid, cmd.status);
-        this.termMap[termKey] = termWrap;
-        this.termMapById[termWrap.termId] = termWrap;
-        termWrap.initialized = true;
-        termWrap.reloadTerminal(true, 0);
-        return termWrap;
-    }
-
-    getTermById(termId : string) : TermWrap {
-        return this.termMapById[termId];
-    }
-
-    recvCmdData(termWrap : TermWrap, pk : any) {
-        console.log("cmddata", pk);
-    }
-
-    getActiveWindow() : WindowType {
-        if (this.windows == null || this.windows.length == 0) {
-            return null;
-        }
-        let awid = this.activeWindowId.get();
-        for (let i=0; i<this.windows.length; i++) {
-            if (this.windows[i].windowid == awid) {
-                return this.windows[i];
-            }
-        }
-        return null;
-    }
-}
-
-var SessionList : mobx.IObservableArray<SessionDataType> = mobx.observable.array([]);
-var CurrentSession : Session = new Session();
-var CurrentSessionId : mobx.IObservableValue<string> = mobx.observable.box(null);
-
-function initSession(sessionId : string, force : boolean) {
-    if (CurrentSession.loading.get() && !force) {
-        return;
-    }
-    let remotesLoaded = false;
-    let sessionLoaded = false;
-    CurrentSession.loading.set(true);
-    fetch("http://localhost:8080/api/get-remotes").then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
-        mobx.action(() => {
-            CurrentSession.globalRemotes = data.data
-            remotesLoaded = true;
-            if (remotesLoaded && sessionLoaded) {
-                CurrentSession.loading.set(false);
-            }
-        })();
-    }).catch((err) => {
-        console.log("error calling get-remotes", err)
-    });
-    
-    let usp = new URLSearchParams({sessionid: sessionId});
-    let url = new URL(sprintf("http://localhost:8080/api/get-session?") + usp.toString());
-    fetch(url).then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
-        mobx.action(() => {
-            let sdata = data.data;
-            CurrentSession.sessionId = sdata.sessionid;
-            CurrentSession.name = sdata.name;
-            CurrentSession.windows = [];
-            for (let i=0; i<sdata.windows.length; i++) {
-                CurrentSession.windows.push(winDataToWindow(sdata.windows[i]))
-            }
-            CurrentSession.remotes = sdata.remotes || [];
-            CurrentSession.cmds = sdata.cmds || [];
-            CurrentSession.setActiveWindow(sdata.windows[0].windowid);
-            sessionLoaded = true;
-            if (remotesLoaded && sessionLoaded) {
-                CurrentSession.loading.set(false);
-            }
-        })();
-    }).catch((err) => {
-        console.log("error calling get-session", err)
-    });
-}
-
-function winDataToWindow(win : WindowDataType) : WindowType {
-    let w = {
-        sessionid: win.sessionid,
-        windowid: win.windowid,
-        name: win.name,
-        curremote: win.curremote,
-        lines: mobx.observable.array(win.lines || []),
-        linesLoading: mobx.observable.box(false),
-        version: win.version,
-    };
-    return w;
-}
-
-function getCurrentSession() : Session {
-    return CurrentSession;
-}
-
-function newSession() {
-    
-}
-
-function loadSessionList(init : boolean) {
-    let url = new URL("http://localhost:8080/api/get-all-sessions");
-    fetch(url).then((resp) => handleJsonFetchResponse(url, resp)).then((data) => {
-        mobx.action(() => {
-            SessionList.replace(data.data || []);
-            if (init) {
-                for (let i=0; i<SessionList.length; i++) {
-                    if (SessionList[i].name == "default") {
-                        setCurrentSessionId(SessionList[i].sessionid);
-                    }
-                }
-            }
-        })();
-        
-    }).catch((err) => {
-        console.log("error getting session list");
-    });
-}
-
-function getAllSessions() : mobx.IObservableArray<SessionDataType> {
-    return SessionList;
-}
-
-function setCurrentSessionId(sessionId : string) {
-    if (CurrentSessionId.get() == sessionId) {
-        return;
-    }
-    mobx.action(() => {
-        CurrentSessionId.set(sessionId);
-        initSession(sessionId, true);
-    })();
-}
-
-function getCurrentSessionId() : string {
-    return CurrentSessionId.get();
-}
-
-export {Session, getCurrentSession, getLineId, newSession, loadSessionList, getAllSessions, getCurrentSessionId};