Linking custom field to Portfolio list in Workfront through Fusion

[Leslie_Tanner_Scott]

I'm new to creating scenarios and was wondering if I were to create a dropdown field called "Portfolio" on a custom form for requests, is there a way to link that field directly to the Portfolio list in the system through Fusion? I'm trying to avoid having to update the custom field every time we create a new Portfolio. 

[ChrisStephens]

You can, but it would be easier to just use a typeahead field. Are you unable to use a typeahead?