It probably easiest to figure out for yourself if you understand what the multiple edit function does. It's a function that runs over several steps and can be confusing.
Step One: The function provides you with a search box so that you can generate a found set which contains the records that you want to edit. The form looks identical to the advanced search form but it has many extra options. It is easy to look at the huge range of options and think that they are all part of the advanced search form, they're not. All of these extra options will give you significant control over the results but three of them are especially important; formatting, enable deleting and fields to edit.
Select the format for display. It's important to remember that the display you choose must include the fields that you intend to edit.
Do you want to delete records? Don't touch this button unless you want to delete records.
Next is an array of checkboxes. Select the fields that you want to be able to edit.
Step two: When you locate the found set that you want to edit the results are displayed in the selected format. Any fields that you've selected for editing will be accessible for editing. If you've forgotten to select any fields for editing you'll simply see the results displayed. A button at the foot of the screen is used to save the changes to disk.
You must edit each record individually. If you have found a large number of records there may be several screens of information. You are only able to make changes to the records on one screen. If you've found twenty records and the amount displayed on a screen is fifteen you must make changes to the first fifteen, save to disk (a new screen will confirm the edits), go back, use the "go next" button in the toolbar, repeat.
This function is good is situations where "Rebuild from DEFAULT.tbl" is not appropriate. You can use "Rebuild" to make changes to every or some records using PERL expressions. It is very powerful.