Currently to be able to moderate a Forum I couldn't find the possibility to give Moderation Rights for a forum only.
By moderating I mean for example editing topics that you haven't created yourself. (The only way I know is that you have to be a Community Owner) I think it would be a nice feature to have.
So you will make a suggestion to have this feature for Community Forums as well? and for each forum a group of moderators/ owners?
the requested feature exist for Stand Alone forum, but in a forum that is "member" of an community, that is only possible with owner right. So the suggestion is here, to add here for forum an extended right structure to control this without to give the complete community owner right.