This is a personal extention for Chrome that fixes some annoyances I've had firstly in GTM and later I've added some functionallity to Google marketing plattform.
It moves User defined variables before builtin variables in GTM variables view.
Enables save on shortcut crtl+s in GTM Enables preview tags on shortcut ctrl+p in GTM
Enables save on shortcut ctrl+s on Google marketing plattform.