An Item # determines a record's position relative to other records.
In this case, the Item Numbers determine the order of Columns from left to right, with #1 being the farthest left.
Figure 670: Setting Item Number for Column
In this screenshot of the New Booking Location Information page in EPConnect, you can see that the Form Columns are displayed in order by Item Number, left to right.
Figure 671: Column Order in EPConnect
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