Seleziona giocatore - Platform a livelli

Hello everyone, I have been using GDvelop for two months and I love it!
I am creating a platform game in which I would like to select which player to use: I have two global players (sprites) but I have no idea how to do it! I need an easy example of player selection please! if necessary I will send screenshots, THANK YOU!

Hi Marco, for a player selection example, I suggest you to watching this tutorial:

Thank you all for the answers.
Unfortunately I tried but the peronaggio does not appear while the hitbox works well (hide).
I used a global text variable and the 2 characters in a variable group, despite this not appearing.
Many thanks to those who will help me, I am attaching screenshots