Add the ability to determine which user has an exclusive lock on a customer

On many occasions, an employee will go step away from their desk or go on break while working on an A/R function, which placed an exclusive lock on a customer. If another employee attempts to do anything with the same customer, they’re unable to.

I would like some method of determining what user has the exclusive lock on the customer. We typically have over 15 employees working on the A/R modules at one time, so it takes an effort to determine who has the customer locked