You can add your own menu items to many Igor menus by writing a menu definition in a procedure window. A simple menu definition that adds two menu items to the built-in Macros menu looks like this:

You can add new menus on the menu bar (they'll appear after the regular Igor menus but before the Help menu) simply by specifying a menu name that doesn't already exist. You can add submenus, too:

Custom Contextual Menus

You can add a custom contextual menu to a graph, panel, table, or layout window, though it takes a little bit of programming. Here´s the code that implements a contextual menu that "selects" a graph trace by increasing its line width:

Once the AllSelectionInTopGraph function is called, the top graph will send events to the ContextualWindowHook routine. When a mousedown event is detected, the code checks if it is a right-click (on PC or Mac OS X) or a control-click (on Macintosh) near a graph trace. If it is, the code pops up a menu using the PopupContextualMenu operation:

If the user chooses the "Select" menu item, the trace that was clicked on is then displayed with a thick line.

"Deselect" returns the trace to the default thin line. In a real application additional means for recording selected traces would allow processing of the selected trace(s).