Step 1 - Navigate your way to the group you would like staff to have access to. Select the "+" next to the group you would like to work with, this will expand the group

Step 2 - Once it has expanded scroll down the section labelled Staff Access Control and select Add to add one person or Add Multiple to enable selection of more than one employee

Step 3 - When the Select the staff member screen appears, select the input box

Step 4 - Type in the name of the staff member you want to add

Step 5 - Select search to search for the employee using the detail you've entered

Step 6 - Once the employee appears in the list, select Add