HOW DO I GIVE MEMBERS POWERS!

I cant figure out how to give my moderators any powers plz help me

Go to your ACP > General Tab > Categories and Forums > Select the forum you want to assign their moderating authority over > Permissions > Adjust the permissions for each usergroup as needed (such as your moderators group) > Save > Run to McDonalds.

i want to give my member powers to like clear the chatbox and ban ppl in the chatbox n stuff is it the same way...?

No, when your in the chatbox, you can type in

/mod "username"

OR

Go to ACP >> MODULES >> CHATBOX >> MODERATORS >> ADD A MEMBER

or right click their name in the section of the SB where the names are displayed and select give moderator