Switch Characters?

Any idea how I can switch between the characters that are at my level after 60s? (Each turn of my game lasts 60s)

PS: I need to switch between players AUTOMATICALLY after 60s. And how can I jump (stop the time) and click on a widget to pass the turn to the opponent?

Like this:

there are other things in my begin play these days, can it ruin something?;base64;base64

You can just start with a sequence node: