I have a little bit lost here, do you mean now you are working on this development domain site (hermann-schmid-akademie.de) then you would like to ask us whether that is possible to move back into your actual domain site (hsa-akademie.de) after you done everything?

Yes - that's the problem - it would have been better to develop under a subdomain - but it is like it is - so:
First: I need the tool on the Domain hermann-schmid-akademie.de
Second (in 1 or 2 month) I need it there: hsa-akademie.de

Please help soon!
Thanks for your fast reply!

May i know what is the tool you mentioned about?

And can you share with us again what is your current problem from your subdomain development site? So I will see if we can help you on this?

The only problem is that I'm not able to install EasyBlog on the development domain hermann-schmid-akademie.de - because my license is registrated under the main domain hsa-akademie.de
So may could you please register hermann-schmid-akademie.de so I can develop there with your tool EasyBlog which I bought again a few hours ago?
PS: I don't need a second domain because after the developing period I will move the site back to hsa-akademie.de

After installing the full pro - version everything works fine.
I just had have problems with the "launcher"-version.
Hope that everything runs well when i had to move it to the main domain later...
Thanks

Thanks for updating Robert, glad that your issues are resolved now. Do you still need us to update the domain for your license?