When you define an ad hoc form, you can specify one or more attachments that can or must be included with each submission.
If you’re asking for submissions to be a speaker at next year’s annual conference, you might request that users submit a resume, a recent photo, and a detailed abstract of their proposed talk, all of this in addition to the information provided on the form.
Find the form you added, then click the Attachments icon in the Maintain Column.
In the top panel, specify the number and description of the attachment and whether its required, then click the Add button. It will be moved to the grid section below.
In the grid, click the Edit icon to move that attachment definition back to the top for editing, or the Delete icon to remove it. These icons do not appear if the ad hoc form has been published and responses have already been submitted.