Advanced Video Settings in Retropie for each Emulator on PAL CRT TV.

[Picard23]

Pi Model or other hardware: Raspberry Pi 3B+
Power Supply used: Official Power Supply (Germany).
RetroPie Version Used: Unknown.
Built From: Pre-configured SD-Card with Noobs and Raspbian. Retropie was installed on top.
USB Devices connected: Keyboard, Mouse, 8Bitdo M30 Bluetooth via USB (to reduce lag), USB Stick (with ROM Images.
Connected to AUX Jack: Aux to RCA Cables (wired correctly, and yes it works).
The Rom Folders were successfully migrated to USB Stick).
Controller used: 8Bitdo M30 Bluetooth via USB.

Hello,

I've been trying to get my Raspberry to output on a Pal CRT and I have succeeded.

sdtv_mode=2 has been set to PAL.
hdmi_ignore_hotplug=1 has been activated.

The Overscan has been messed with and is almost working.

I've been been reading Retropie now supports 240 / 288p and that you can switch inside Retropie from 576i / 480i to 288p / 240p.
The general video settings and the settings per emulator are what I'd like to mess with.

Where can I find information on how to properly display each emulator on a PAL SDTV?
Can I damage a CRT, if the Video Output isn't configured properly?

Any information is appreciated.

Thanks.