[EDIT]
you could achieve your goal using SDL's API
that is, unfortunately, realted with some "coding works"

Good Luck To You 

Thanks! Yes, I remember you had that app, but I am sadly on 2019 and don't intend to go back to 2017 anytime soon...

I've also been playing around with AutoHotkey to make one myself. I mean: how hard should it be to add a term pair to my termbase without any visual nonsense?

Hi Michael,

This AHK script might help you get started:

http://noradiaz.blogspot.com/2016/11/adding-terms-to-secondary-termbase.html

Michael Beijer said:

how hard should it be to add a term pair to my termbase without any visual nonsense?

That is impossible with AutoHotkey.
AutoHotkey is outsider of SDL Trados Studio, it is a secondary tool, it can not do any kind of elegant work.

so, If you want to make a primary tool, use C# (SDL's API)
SDL Trados Studio itself and SDL Trados Studios's PlugIns are all made with C#
AutoHotkey is.. a toy.

Michael Beijer said:

Thanks! Yes, I remember you had that app

no, I made it yesterday.

Thanks!

I can hardly manage AutoHotkey, so no C# I'm afraid. ;-)

ah, OK, I was thinking of something else you made a while back, that I had the same problem with: would love to try them out but can't go back to Studio 2017

ah, OK, I was thinking of something else you made a while back, that I had the same problem with: would love to try them out but can't go back to Studio 2017

Michael Beijer

Try this for now: https://appstore.sdl.com/language/app/rapid-add-term/1050/

We built a quick fix no questions asked plugin, all working with the public APIs (no hacks), and seems to work correctly.

Paul said:

seems to work correctly

Nop, SDL, still, has rooms to improve.

Unknown said:

Nop, SDL, still, has rooms to improve.

Apart from the no-duplicate checking, what doesn't work?

I can not test it
because, I am not allowed to download it.
I am an abndoned user. Version 2017...

I like it! Thank you Paul and the SDL Development Team!