[dj]

Hi, Snoops:

You have to create a new part for the new staves.

To the left of the Part selection scroll down box, select the first item in the part menu (Display or Define Part).

At the bottom left of the dialogue box that comes up, select Add New Part, then give your part a new name in Part Name box, select Change Part Name, then, in the right hand panel, select the staves you want included in the new part, click on Changes Staves Assigned To Part to set those staves, then click on Display and Exit.

Your new part should now appear in the drop-down box.

Good luck.

David