Forum - how to change the status in the title

When a topic is solved, it would be nice if we can change the title with prepending key word like [solved], [github], [V2]…

How can I do this ?

Are you not able to edit the post?

no, not possible : no button nor link

Ok, sorry. I guess it’s a limitation of the forum software we’re using.

It lets you edit posts for a certain period of time, but if you go back to them later, the option is gone. Possibly an admin setting somewhere?