Is there a possibility to make automatic stop for all active transfers when I open some multiplayer game? Or maybe whole steam process. Before I begin to play multiplayer game I quit tixaty to get better ping and I usually forget to put it back on when I quit the game. I didnt find anything relevant in the settings or through google...

Thank you

you could try using bandwidth presets. or you could right click the icon or the top bar(home,channels,rss,transfers...) and stop all transfers. and when you are done right click again and restart all transfers.