Traversal type is a setting on all forms that allows the builder to choose how the form behaves when the temporary block association returns more than one record.
Display once for each record found - With this option selected, if the
temporary block association returns more than one result, the contents of the form will be repeated, one time for each
record found.
Display only once - With this option selected, if the
temporary block association returns more than one result, the contents of the form will be repeated only once, and the
context of the contents will be the first record returned by the block association query.