Add languages to the default languages in Studio 2019 Freelane

Hi,

I have a problem with the languages in Studio. I think I forgot to add some languages at the very start, when I installed Studio. And now... I can't do it anymore. If I uninstall Studio and then install it again, I cannot add languages. The default setup is the same as previously... I don't have this window again where you can select the languages at the start.

I tried with TradosFreshstart, but it doesn't seem to work either. What should I do?

Thanks a lot for your help,

Best regards

Nadège Jauch