Hi Andre,
It's a (missing) feature.
The salesperson list is presented in salesperson code sequence.
Use GridView to dump the names and code to Excel and sort the list in name sequence. Mark the names you want to delete. Sort the list back into code sequence. Then delete them one by one.
It's a bit cumbersome, but it'll have to do until we get a Find button on that screen.
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Andrew Bates