
Click on the Space where you want to add the app.

Click 'Add Group' icon in the webdock.

Name the Group and click on the 'Add App' button.

Select the App from the Store

Right-click on the App Icon

Right-click on the App Icon and select 'App Settings'

In Settings, scroll down the 'Space' section. Click on the Space selector.

In the Spaces Drag & Drop Manager, drag the new Space icon over the app.

An info prompt will appear. Click the 'Got it' button.

You now have the same app in 2 Spaces.
Click on the Space where you want to add the app.
Click on the Space where you want to add the app.