In this video, we’ll learn how to create sublists within our forms. Sublists help us build one-many-type forms using a lookup column between the main list and the sublist.
 
Creating Sublists
To create sublists within your form:
- Click the + icon where you would like the sublist to appear.
 - From the Add dialog, scroll down to the Lists and Libraries section.
 - Select the list or library that you wish to insert.
 - In the List configuration, you can set the following properties:
 
- View – Select the view from the sublist that you wish to display
 - Use as Sub item? – Check this option to link the two lists via a lookup column
 - If you are using a lookup column, specify the name of the lookup column, or create a new lookup column by clicking the + icon as highlighted below.
 - CAML filter – Optionally set a filter if you are not using a lookup column to filter the items you wish to see in the sublist.
 - List Forms – Optionally specify which New Form and Edit Form you would like the sublist to use.
 - Appearance Settings – Refine the sublist by choosing whether to display the search, command bar, and Header Text.
 
