• a eq brickwall shape (for cutting some unheared freqs)

• preset save remembering compressor and crossfade config (if you only want to use it in headphones and not in another preset)

• probably an automatic preset changer detecting headphones connected, like viper4android

• have you tried notch, lowpass or highpass?
• good idea
• see How to script activator

Yes i tested that shapes but they arent agressive, or like low pass at 96db strenght, something more “L”, “sharper”

Yep i used the script and its working fine, thanksdd