How to Install Klipper on Creality Ender 3 S1: Config and Setup

First of all a big THANK YOU!
The S1 Pro is my first 3d Printer and with your help i have awesome Prints coming out of this Machine.

I hava a big question and hope you could help me.
In the printer.cfg i can’t find any TMC configs, so i think it runs in the standalone mode.

Do you think you could help me to set up the printer.cfg so i or maybe others can adjust the steppers a little bit more with your help? I really want to set the run_current because the steppers get extremely hot even with passive cooling on them. I want to do a print for 37 Hours and i am not really sure i want to try it.

On many Sites it says we have the TMC2208 but i cant figure out how to find the UART Ports and so on…