Bill
3 years on but I've only just seen this thread. Did you ever solve it to your satisfaction?
If not, I did much the same recently to place a zoom box directly below a selected textbox in a form (single/continuous or continuous subform).
See https://www.access-programmers.co.uk...0&postcount=20
Also , in response to another request in this forum, I've also managed to accurately identify the 'selected' record in a listbox using mouse move code (without clicking the record)
If you are interested, see post #47 in this lengthy thread https://www.accessforums.net/showthread.php?t=75572 for the first working solution.
An improved version will be posted in the next couple of days