You can hide scenes, so these scenes will not appear in the current list of scenes. 

Among the scene categories you can see the category named "hidden". 

If you set a scene's category to "Hidden", this scene will not be on the main page among your current scenes. 

Restore

You can restore the hidden status of a scene. 

First you have to set the filter of the scenes to Hidden, so only the hidden scenes will appear in your list of scenes. 

When you only see the hidden scenes, then set a colour category to the scene, which you would like to restore or set the category of it to "Delete category". This way, the previously hidden scene will reappear in your list of active scenes.