Screen with 18:9 size

Hello. I tryied to find some help here about this but I couldn’t find it.
Is there any way to adapt the app to the new 18:9 screens? Because my app has a black rectangle on the botton of the screen.
Also, Is there any plan to remove innecesary acess to the apps made with Thunkable X or there are any way of doing that?
Thanks a lot!

dont use absolute size in layout, use percent%, fill content or container. about permission, it set on thunkable x compiler server side. on thunkable classic permission is OK.