From the expense reimbursements page, click the Expense Groups link (1) in the Go To line.
Enter a group name in the Expense Group field then select a Reimbursable Expense from the menu (2).
Click Update (3) to save your new expense group.
After saving the page, select desired Available Expenses and use the arrows (4) to move them into the Associated Expenses column.
After you Update this page again, this expense group will be available on the expense reimbursements page.
To create an additional expense group, click the Add New button (5).
To edit an expense group, select it from the Expense Group menu (6), make your changes then click the Update button (7) .