This is a subroutine for the addition and manipulation of graphical objects on the screen.
Graphical objects can be inset plots, chemical structures, logos or others.
They can be pasted from the clipboard or imported from files. More than one object can be displayed on the screen, and each can be independently moved and resized using the mouse. The program keeps track of them in a linked list. To select which object to operate on, move through the list, forward or backward, until the desired object is indicated with a box with handles. See subcommands below.