Collection of ART marks united into a group. This class provides methods and properties general for the entire group.

Members:

IG_ARTX_group_bring_to_front	Moves a group of marks to the top of the Z-Order.
IG_ARTX_group_clipboard_copy	Copies a group of marks to the clipboard.
IG_ARTX_group_clipboard_cut	Cuts a group of marks to the clipboard.
IG_ARTX_group_mark_add	Adds specified mark to the group.
IG_ARTX_group_mark_at	Gives the index to the specified mark within the group.
IG_ARTX_group_mark_count	Provides the count of the marks in the group.
IG_ARTX_group_mark_remove	Removes specified mark from the group.
IG_ARTX_group_mark_remove_at	Removes the mark specified by index from the group.
IG_ARTX_group_marks_remove	Removes the group of marks.
IG_ARTX_group_marks_select	Selects the group of marks.
IG_ARTX_group_send_to_back	Moves the group of marks to the bottom of the Z-Order.