I am not sure what you are trying to do, but it sounds like something you would first do at the table level. You need to make the CraneNumber a look up value to the Crane table. Then when you create your form, you will automatically get a combo box for your users to look up a crane number.
Then I am not sure what you want to do next. Do you want the AreaNumber field to contain 82 separate numbers, or do you want to create 82 new records? If your Area Numbers are already stored in another table, you can make that a look up column as well.
You could just write some simple code to insert 82 records after the user selects the Crane number. I would do this with an unbound form, however, with a combo box that looks up the crane number, and then a commit button that adds the records.
Do you have more info on what you want to do?
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