Can I Delete bones from A.R.T. Tool V1 on creation

I just want to build my rig with no legs, since my creature has no legs. Is it possible to leave the legs out or go in after creation and remove them before I send the model to weight painting and control rig creation? I am using the art tool and I had a similar problem last week where I needed only 2 spine bones(3 being minimum). So I only weighted to those two bones and just didnt weight the third. This worked fine for just one extra bone thats unused. But doing this with 2 entire leg chains seems like alot. Is there a way to overide the creation of the leg chain entirely?