Translating wordpress plugins seems to be a difficult task, yes :-))
Please have look at the 3 attached screenshots of my German wordpress Installation with all Add-ons activated (version 1.2.5)
It is a mix of German/English buttons and explanations. And the lettering/wording in the buttons is not very consequent.
And the wording of the Export and Delete buttons should match the translations in the Customizer area, right?
Not an easy task, really!
If you want I could try to help you with some translations. But we would have to find a way how to do that. I guess you already have *translators* for different languages..
One more question to you:
In the first answer to my question you write “In the latest version of GP Premium, there’s a popup confirmation you have to bypass in order to delete your settings…“
I didn’t see any such popup. Is this in the next 1.2.6 version?
PS: I din’t find a way to attach secreenshots – so: no screenshots, sorry