The Limit List feature allows you to limit pick lists to a pre-determined selection of items. To use the limit list feature, complete the following steps:
Add a field that can be limited to the form. This includes Problem, Category, Affected Asset, etc.
In the Properties grid, click on the LimitList property and select "True". The Limit List button will be enabled (circled in red at the bottom of the image below).
Click on the Limit List button to access the Limit List form. The Limit List selection grid will display the code and description for each item available. You can highlight one or multiple selections from the left-hand grid and add them to the right-hand grid. The items you add to the limit list will be the only ones accessible to the end-user when using the form on the web.
Note: For example, when you use the Limit List function for a Problem field, users will only be able to select from the Problems you define in your Limit List.
Once you've finished making your selections, click Save.