Atlas UpdatePanel in Web User Control - How to update other controls?

[Remy]

Hello
I've built my own ASP.NET 2.0 Web User Control that uses the Atlas Ajax
UpdatePanel. This works fine so far.
The problem is if I embed this control with other control on a page and
now I want to update other control based on the return from this
control.
Do I just wrap the other control into another UpdatePanel or I wrap
everything into one big UpdatePanel?

Whats the standard approach or am I completely off with my idea?
I don't wanna remove the UpdatePanel from my control, cause then it
kinda looses the functionality for normal standalone cases.

Cheers

Remy