Thanks all for this informations.
I did not find the auto-reconnect function and I doubt this is the solution.
So I wait to buy this app until it is finished

I've seen an auto-reconnect feature, that may be useful as an option.

You are right, I tested few other apps even some that only play over chromecast and after playback is stopped all of them ask to select renderer.

That would be for MMW, not MMA. I don't think there is a way to do this.

Hi,
yes, tools -> Options -> Player

Hello
I can assign my renderer by using cast in the top-menu.
Is there a way to set the renderer as default permanently?