Let's say I have an orchestral score, which of course has a lot of staves. And I decide that I need an additional percussion staff, which would be between the brass instruments and the strings. When I add a new staff, it appears at the bottom of the score (underneath the double basses). When I try to move it up where it belongs, it doesn't work, and is stuck under the basses. Isn't there a way of adding a new staff (or staves) and having them appear wherever I want to put them in the score? And if not, then how do I move the new staff?

Thanks!