Using the Multi-Select element
The Multi-Select element is similar to the pick list widget, except users may select multiple items from the assigned option list.
Select Multi-Select under Element Properties on the left side of your screen. You will see a new element pop up on your device view. To make the Multi-Select field required, select Required under Element Properties.
Select Option Lists under element properties.
In the bottom left corner select +Create List and name your option list.
Fill out the chart.
– Sort Order is the order in which you want your list to appear.
– Label is the value for whatever you are listing.
– Key Value in this case is a numeric value to help us post process data from option lists.
A default value is assigned unless a modification is required.
Click the save icon at the top right corner of the page.