Hi @andreas-kviby ,
As we are looking into a long term solution, how about this:
Since there are 6 themes for headers, you can use the first 3 (H1, H2, H3) for the public site, and the rest for the Dashboard Pages (since they are not visible to search engines it won’t make any difference).
That way you can use and save themes both in the site pages and in the Dashboard pages.
Let me know if that works for you.
Thanks!
Or