If you would like to change a user's role in the Q&A process, you can change the user's Q&A role.
Step 1: Navigate to Roles & users;
Step 2: Select the user(s) you would like to change;
Step 3: Select Change Q&A role;
Step 4: Select the new Q&A role and select Save.
Note: In a user role there can only be users on Question or Answer side.