AMOSi:Unpack
an example can be found on AMOSPro_Examples:Examples/H-4/Help_41.AMOS
UNPACKs a compacted screen in one of three ways.
Unpack banknumber To screennumber
Opens a screen and restore its image from the memory bank.
Unpack banknumber
Unpacks a screen at its original position.
Unpack banknumber,x,y
Unpacks an image and redraws it starting at coordinates x,y