Acer A100 - Manual (Page 39)

37 Acer content folders
Adding
You can add applications to any content folder. Tap (+) in the top right corner
and select one or more applications from the list. Tap OK to add shortcuts for
the selected applications.
You may view up to twenty shortcuts on a single screen. If you add more than
twenty shortcuts, swipe the screen up to see additional shortcuts.
Moving or removing
Tap and hold an item to select it. Drag it to an new position to change the
order, or to the trash can in the top right corner to remove the shortcut from
the screen.
Note: Certain preloaded applications may not be removed.