<<I'm not sure what is the best solution? Convert these from tree-settings to site-settings?>>
Yes, I think that is the only solution, as essentially user registration is no longer linked to any tree, or (?) even the existence of a single tree?
<<I'm not sure what is the best solution? Convert these from tree-settings to site-settings?>>
Yes, I think that is the only solution, as essentially user registration is no longer linked to any tree, or (?) even the existence of a single tree?