Yes, Luminair does allow you to activate multiple scenes. Luminair uses a "pile on" design for scene activation. While only one scene is considered the current active scene in the user interface, Luminair allows you to" layer" multiple scenes on the fly.

You can choose which parameters are updated when activating a scene by tapping the scene name label > Parameters. Any parameters not included in a scene will remain at their current state (set by previous scenes) and this includes things like value, colors, FX parameters and movement options.

To clear levels set in previously active scenes you can use the "Release All Levels" command in the action menu in the main app toolbar (wrench icon). Alternatively you can create another scene button which sets the parameters with values that reset whichever custom state you want to trigger.