[rveonly]

Can you suggest how to increase the number of roles and change the role settings exclusively in the bbPress forum (so that these roles do not apply to the site into which the forum is integrated)?
Where exactly do you go to configure this feature? Or which extension will help you do this?

We need the ability to appoint certain people as moderators of individual sub-forums.
Sorry for my English!

[Robin W]

that ability is on bbpress

so set the user to particpant, and then in the relevant forums, you will see the ability to set the user as a moderator for that forum on the right hand side in edit forum