You will require access to Roles which is located under the Organisation Administration menu. To add the new role, follow the below steps.
Go to the Admin Cogs
icon.Click on Organisation Administration tab
Click on Roles
Click Add Role button
Once created, you will need to go back into the new role
Click Edit button (pad and pencil icon)
Click on Permission's tab
Then from the left-hand side menu select the module and tick the relevant access
If you need to amend a current User, please refer to article Attaching users to a different/new role.