Can I edit my teller's access

Yes. You are able to edit (add or remove) teller’s access. Simply follow the below steps;
Step 1: Login and click on "user account".
Step 2: Search and find the teller in the table displayed in the "tellers" section.
Step 3: Click on the “teller username” held in the “username” column.
Step 4: Under grants access, click “delete” next to the item you wish to remove or select an item from the drop-down list and click “add” to give the teller access to the selected item.
Step 5: Click “save”.