I use TS2 to talk to team mates when we fly with flight simulatos in our PCs in different places of the world.
For that, I configured the push to talk option

I also at the same time use other applications running on different windows on my PC, and my problem is that any time I click any other window the TS2 window ceases to be the active window, and this prevents the push to talk window from working, until I find the TS2 window and click on it with the maouse before I press the push to talk.

How can I set the TS2 client app to act "always as an active window"? Or better, how can I push to talk all the time without having the TS2 necessarily as the active window?