Change Object Menu focus when selecting an object.

When you click on an existing object in a map, have the option such as CTRL-click or ALT-click when selecting the object to have the object selection menus at the right to change focus to the category/group that object came from. For example, if you CTRL-click on the "Hay Bale" object, have the object menu focus change to Craft/Farming Tools. This would make it easier to see what similar objects to the one selected are available.