single action with 2 contexts?
 

can i put multiple contexts to a single action?

You can, if your contexts are nested.
Means, you got a context named "People" and as nested context "People : Anna" e.g.

Otherwise ask yourself how needful it will be. For me, two contexts are always two actions, if it is not like I discribed above.

And before it spins out of control, [URL="http://forums.omnigroup.com/showthread.php?t=5787"]this thread[/URL]'s 178 posts say seemingly everything that can be said about the multiple context issue.