Contextual menus are available by Control-clicking in a scrap window. These menus are not OS8 specific. Basically, the menus will be different depending on what operation you are doing. If you are editing text, have a portion of a PICT selected, etc., the options available in the Contextual popup menu will be different. Give it a try!
NOTE: If you are running OS8 and have the ΓÇ£Contextual Menu EnablerΓÇ¥ installed, you may have to go to the Help menu and select the ΓÇ£Turn Off Contextual Menus in ScrapIt ProΓÇ¥.