Package Slip via Carrier: set the standard Units

Package Slip via Carrier: set the standard Units

Hi there,
We are generating package slips via DPD Germany via Zoho. Right now, the process is really slow, as we have to click a lot:


I couldn't find a way to create pre-existing package types, so that I don't have to enter the dimensions all the time.. this takes so much unnecessary time.
Furthermore, all units are by default set to lb and in - we are using kg and cm in Germany and I set this as my default units in settings as well!
Would be nice to get feedback from the team or users in Europe that could find better ways to speed up this process .. right now, creating a package takes double the time than with our old system.