How to activate the MotionControllerMap afterward?

I started building a level in the Startup Map. After some time I realized I should have started in the MotionControllerMap to get all the VR navigation features in my level.

1: Is it possible to get the MotionControllerMap features in, afterwards?
or
2: Is it possible to export/Import my Levelcontent to the MotionControllerMap?

Thank you guys

I dont know the best way but I believe any Actor asset can be put into any map.