can we get rid of the blank space on the right (used for suggestions) and only have the keyboard from this screen.
You can't get rid of the space. The best you could do is not have any search terms there, and use SetEmptySearchTermsText ()
to put some text in the blank space, perhaps some instructions to the user regarding what constitutes a valid playlist name.
The other alternative would be to design your own keyboard using roImageCanvas.