fdo#76780 don't limit PositionY to available width

Change-Id: I3a429d0a6f771f6bfde2331ddc8544c92d8147f7
bCategoriesUsed is always false at this point

Change-Id: I7e6851ce3f24ef3c5051eb7431b6aa1df845836d
LEM TODO note

Change-Id: If082f723383da72eac75ca660203aea2a33a7526