I'm sure this is a 'easy once you know the knack' kind of question.

It's easy putting layers into groups but I'm having trouble taking them out, especially while keeping them in the same ordering.

I have worked out that you can drag the layer a few up or down, hold it in its new position for a while (a second?) and then Artrage seems to know I want to take that layer out of a group and it obeys my orders. But sometimes I want to remove a layer from a group without changing its order. In this case, I keep right clicking to see if I've missed an 'ungroup layer' option. Is there such a thing?

Have I correctly identified how to ungroup a layer (the hold it in place for a second thing)?
Is there a shortcut/trick I have missed when it comes to ungrouping?

I don't remember having a problem with this previously, but after six months of exclusively using a Photoshop type program I've gotten used to their way of grouping layers. Artrage's way of grouping and ungrouping has poofed right outta my brain.