diff --git a/src/common.js b/src/common.js
index 2249bc5..9ace2d1 100644
--- a/src/common.js
+++ b/src/common.js
@@ -10,4 +10,8 @@ export function get_label_from_path(path) {
 
 export function get_label_from_final_data(data, index) {
     return data[index].label;
+}
+
+export function get_use_from_final_data(data, index) {
+    return data[index].use;
 }
\ No newline at end of file
diff --git a/src/component/filelist.js b/src/component/filelist.js
index d809984..ed94189 100644
--- a/src/component/filelist.js
+++ b/src/component/filelist.js
@@ -20,7 +20,6 @@ class FileList extends Component {
     }
 
     render() {
-        console.log("table", this.props);
         let render_file_list = (
             <Paper className="paper">
                 <Typography align="center" variant="title" className="fileListTitle">
@@ -40,6 +39,7 @@ class FileList extends Component {
                             <TableCell>ID</TableCell>
                             <TableCell>Filename</TableCell>
                             <TableCell>Label</TableCell>
+                            <TableCell>In-Use</TableCell>
                         </TableRow>
                     </TableHead>
                     <TableBody>
@@ -49,6 +49,7 @@ class FileList extends Component {
                                     <TableCell>{n.id}</TableCell>
                                     <TableCell>{n.path}</TableCell>
                                     <TableCell>{n.label}</TableCell>
+                                    <TableCell>{n.use}</TableCell>
                                 </TableRow>
                             );
                         })}
diff --git a/src/component/imageviewer.js b/src/component/imageviewer.js
index 3583496..d3f156c 100644
--- a/src/component/imageviewer.js
+++ b/src/component/imageviewer.js
@@ -1,10 +1,16 @@
 import React, {Component} from 'react';
-import {withStyles} from 'material-ui/styles';
 import Paper from 'material-ui/Paper';
-import Typography from 'material-ui/Typography';
-import TextField from 'material-ui/TextField';
-import {get_filename_from_path, get_label_from_path, get_label_from_final_data} from '../common';
 import Button from 'material-ui/Button';
+import Switch from 'material-ui/Switch';
+import TextField from 'material-ui/TextField';
+import Typography from 'material-ui/Typography';
+
+import {withStyles} from 'material-ui/styles';
+import {
+    get_filename_from_path,
+    get_label_from_final_data,
+    get_use_from_final_data
+} from '../common';
 
 const styles = {
     card: {
@@ -18,17 +24,16 @@ const styles = {
 class ImageViewer extends Component {
     constructor(props) {
         super(props);
-        console.log('init', this.state, this.props);
         this.state = {
             current_index: this.props.current_index,
             current_label: undefined
         };
         this.handleChange = this.handleChange.bind(this);
         this.handleClick = this.handleClick.bind(this);
+        this.handleSwitch = this.handleSwitch.bind(this);
     }
 
     componentDidMount() {
-        console.log('did mount', this.state, this.props);
         this.setState({
             current_index: this.props.current_index,
             current_label: undefined
@@ -39,8 +44,11 @@ class ImageViewer extends Component {
         this.setState({current_label: event.target.value});
     }
 
+    handleSwitch(event, checked) {
+        this.props.handleSwitchChange(checked, this.props.current_index);
+    }
+
     handleClick() {
-        console.log(this.state, this.props);
         this.props.handleLabelChange(this.state.current_label, this.props.current_index);
     }
 
@@ -80,6 +88,12 @@ class ImageViewer extends Component {
                             onClick={this.handleClick}>
                         Correct
                     </Button>
+                    <Switch onChange={this.handleSwitch}
+                            defaultChecked={1 === get_use_from_final_data(this.props.final_data, this.props.current_index)}
+                            key={1 === get_use_from_final_data(this.props.final_data, this.props.current_index)}
+                            label="In-Use"
+                            color="primary">
+                    </Switch>
                 </Paper>
             );
         }
diff --git a/src/mainview.js b/src/mainview.js
index 1c98a37..05d0f3e 100644
--- a/src/mainview.js
+++ b/src/mainview.js
@@ -25,6 +25,7 @@ class MainView extends Component {
 
         this.listener = this.listener.bind(this);
         this.labelChange = this.labelChange.bind(this);
+        this.switchChange = this.switchChange.bind(this);
         ipcRenderer.on('action', this.listener);
     }
 
@@ -45,7 +46,7 @@ class MainView extends Component {
                 if (files) {
                     let final_data = [];
                     for (let i = 0; i < files.length; i++) {
-                        final_data.push({id: i, path: files[i], label: get_label_from_path(files[i])})
+                        final_data.push({id: i, path: files[i], use: 1, label: get_label_from_path(files[i])})
                     }
                     this.setState({final_data: final_data, current_index: 0});
                     document.title = "Labeling Tool - loaded new image files";
@@ -64,11 +65,17 @@ class MainView extends Component {
                 });
                 if (ljson_file) {
                     let json_info = JSON.parse(MainView.readText(ljson_file[0]));
-                    console.log(json_info);
                     this.current_file = ljson_file[0];
 
                     let current_index = json_info.meta.current_index;
 
+                    if (json_info.data[0].use === undefined) {
+                        json_info.data.map((t) => {
+                            t.use = 1;
+                            return t
+                        });
+                    }
+
                     this.setState({final_data: json_info.data, current_index: current_index});
                     document.title = "Labeling Tool - " + ljson_file;
                 }
@@ -82,43 +89,36 @@ class MainView extends Component {
                 if (this.state.final_data.length !== 0 && this.state.current_index - 1 >= 0) {
                     this.setState({current_index: this.state.current_index - 1})
                 }
-                console.log("prev", this.state);
                 break;
             case 'prev10':
                 if (this.state.final_data.length !== 0 && this.state.current_index - 10 >= 0) {
                     this.setState({current_index: this.state.current_index - 10})
                 }
-                console.log("prev", this.state);
                 break;
             case 'prev100':
                 if (this.state.final_data.length !== 0 && this.state.current_index - 100 >= 0) {
                     this.setState({current_index: this.state.current_index - 100})
                 }
-                console.log("prev", this.state);
                 break;
             case 'next':
                 if (this.state.final_data.length !== 0 && this.state.current_index + 1 < this.state.final_data.length) {
                     this.setState({current_index: this.state.current_index + 1})
                 }
-                console.log("next", this.state);
                 break;
             case 'next10':
                 if (this.state.final_data.length !== 0 && this.state.current_index + 10 < this.state.final_data.length) {
                     this.setState({current_index: this.state.current_index + 10})
                 }
-                console.log("next", this.state);
                 break;
             case 'next100':
                 if (this.state.final_data.length !== 0 && this.state.current_index + 100 < this.state.final_data.length) {
                     this.setState({current_index: this.state.current_index + 100})
                 }
-                console.log("next", this.state);
                 break;
             case 'correct':
                 if (this.state.final_data.length !== 0 && this.state.current_index + 1 < this.state.final_data.length) {
                     this.setState({current_index: this.state.current_index + 1})
                 }
-                console.log("correct", this.state);
                 break;
             case 'exiting':
                 this.askSaveIfNeed();
@@ -149,7 +149,6 @@ class MainView extends Component {
     }
 
     saveCurrentDoc() {
-        console.log(this.current_file);
         if (this.current_file === undefined) {
             const file = remote.dialog.showSaveDialog(remote.getCurrentWindow(), {
                 filters: [
@@ -163,7 +162,6 @@ class MainView extends Component {
                 meta: {"current_index": this.state.current_index},
                 data: this.state.final_data
             });
-            console.log(save_data);
             MainView.saveText(save_data, this.current_file);
             self.isSaved = true;
             document.title = "Labeling - " + this.current_file;
@@ -178,6 +176,14 @@ class MainView extends Component {
         }
     }
 
+    switchChange(new_switch, index) {
+        if (new_switch !== undefined) {
+            let final_data_copy = this.state.final_data;
+            final_data_copy[index].use = new_switch ? 1 : 0;
+            this.setState({final_data: final_data_copy});
+        }
+    }
+
     render() {
         return (
             <Grid container className="root">
@@ -190,7 +196,8 @@ class MainView extends Component {
                         <Grid item xs={12}>
                             <ImageViewer final_data={this.state.final_data}
                                          current_index={this.state.current_index}
-                                         handleLabelChange={this.labelChange}/>
+                                         handleLabelChange={this.labelChange}
+                                         handleSwitchChange={this.switchChange}/>
                         </Grid>
                     </Grid>
                 </Grid>