Hi,
You have the Melody frozen so although it shows you have loaded the realtrack it just won't generate it.
If you click on the big Freeze button (on the main screen) you can unfreeze the melody track and it should work then.

This should answer 1 and 2.

If you right click on the for example the melody button on the main screen you will get menu items that you should explore.

George


Windows 11 64 bit, Biab 2024 1111, Realband 2024
i7 Desktop Computer 16Gb Memory