What is a Subform?
Subforms can be used to create sub-sections of a larger form. They should take form elements that would originally be on the Parent Form and add them to a separate form that will be linked to the Parent Form.
What is a multi-paging Subform?
A multi-paging Subforms allows the user to capture multiple records under the same Subform element. This can be great for data such as Images, Text Areas and any elements that capture large amounts of the data.
Use multi-paging subforms so that when capturing large amounts of data, the records go up one at a time instead of trying to go all at once which can cause issues with data upload.