Thank you so much, that has worked great!
Had to change it a little to get it to work with my python script. If anyone's curious:
from pymxs import runtime as rt
parent = rt.windows.getChildHWND(rt.name("max"), (rt.viewport.getCamera().name))
tm_btn = rt.windows.getChildHWND(parent[7], "Edit...")
Thanks again, I really appreciate it!