Currently I have a client who would like to be able to track MX Express or MX Merchant sales by employee. They can do so in the user report...however, they have an interest in sorting by amount to distinguish between sale amounts. And this merchant is not a fit for MX Retail since the retail app doesn't run on iPhone.
For instance, for a non-profit, donations may be any amount, but tickets for an event may be $30/ticket. Sorting by dollar amount would help them identify how many tickets each user sold for the event.