When I'm using the TAB to move around the rows (filename - title - artist - genre - year) and reach the last one (year) and press TAB, then suddenly the row (the one I'm working on) disappears and ends further down the "page" Should just jump to the row under it, but that never happens. Any solution for this issue? Thanks 
Good point, I've made a note regarding your suggestion.
Great. Thanks for following up so quickly. Great customer service! 
I've added this with the just released Mp3tag for Mac v1.1.3.
Great! That was really quick! Thanx.