When you hand draw something, usually you need to have several polygons, or several free-hand drawings done to create it. When it comes time to move said object, you can group select it by click+drag or multi-select. What I'm suggesting, is the option to 'group' these objects together, effectivly binding drawings to other drawings, images to images, or even drawings to images, and un-group them later. To specify that this isn't redundant with multi-select, (since you can ctrl-click or drag select), say this is a drawn summoning circle you placed in a room. You can drag-select this, but you'll also select the room (since it surrounds it), making it a clunky mechanic. There is the option to do this on several layers but I'd prefer my summoning circle to be on my map layer and so forth. The option to 'group' drawings or objects in general will make them easier to move and can to applied to images too. It makes moving groups or formations of images much easier when they can be selected with a single click rather than ctrl-clicking each one.. which is even more painful if you're trying to move each and every line on a drawing. The only issue I see is the 'front' and 'back' mechanic. Should all objects in the group be normalized to the same z-order, or do they keep their position? If each object in a group keeps their z-order, should 'to front' and 'to back' be allowed for group controls (useful you you want to move them back and forth such as furniture).. or is it only for movement? Adding to this, 'to front' and 'to back' for individual group members? Personally I like preserve z-order and 'to-front' and 'to-back' to keep relative order. Where relative order means that if a tree is on top of grass, if the group is moved 'to front' the group as a whole is moved to the front, but the tree will still overhang the grass, and if there's flowers, the tree overhangs them as well, the flowers remaining above the grass. Of the tree-flower-grass group, it's all moved to the front of say, a rocky dirt path that may be a group of its own dirt,path,pebbles.
