Automatically switching to updating presentation

Hello,

We just started to use keynote to collaborate. Everything works fine but there is very inconvinient situation:

I have opened 2 Keynote presentations 1 and 2. When I am working with presentation 2 and my collaborator change something in presentation 1 Keynote automatically switch me to presentation1. I don't want this!

This situation makes that working with presentation 2 is very difficult because of the continuous switching to pres.1.

Does somebody know how to preserve from switching? I need to have open both presentations.

Krzysztof