Attribute Holder Button

I want to access the reset option inside a custom attribute.

I look at the code like this

def=custAttributes.getDef $.modifiers[1] 2

custAttributes.getDefSource def

$Character_root_Ctrl.modifiers[1].pmAtt.pmAtts.loadSaveRoll._rst.pressed() --------->Wrong Path!!!

I need to find the exact path to activate the reset option contained in the Reset button. Can anyone help me? Thank you very much.

Animated Gif
https://gifyu.com/image/YpBx

3dsmax scene:
https://drive.google.com/file/d/1HqNeFtXYdjSpnrn7pWKOI9EBpensy1_X/view?u...