As shown in the image there is a table with the columns being first the username, bulk, irs_monitor write, irs_monitor read, irs_plan write, irs_plan read, irs_record_point write, irs_record_point read, debug write, debug read. Next to each of these is all or none option which are used to define if user is given permission or not. The first thing to do though is to select a user that you want to give the permissions to by clicking on the button "add user" on the bottom left.