Kindly follow below mentioned steps to rename the tour and add tour icon in multiple tours app.
1. Open the project for which you want to rename tour and add tour icon.
2. Click on "Go to Top" from the left pane of the authoring/preview screen to open Multiple tour folders window.
3. You will be able to see options such as Label and Icon (in the right pane of the multiple tour folders window).
4. Enter desired tour name under Label and add tour icon under Icon option.
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