As a chat room owner, you are able to manage its settings and members. Additionally, you can change the role of a room member.
To promote, demote or remove a room member, click the three dot menu in any chat to access Chat details (Figure 1):
Figure 1 Chat details
Click Members to expand the list (Figure 2):
Figure 2 Members
Hover over the person you want to update, click the three dot menu and update the user as required (Figure 3 and Figure 4):
Figure 3 Member actions
Figure 4 Member actions