I have a portal with a popup list of the different skills. Since for each contact they will only need to select each skill once for each person I was wondering if there is a way to update the value list to only show fields which have not been choose before. This would help avoid adding skills more then once.
In the attached image I already added "2D Animation" and "3D Animation" as skills to the contact. When I open the Dropbox those still appear as options, but I would love for it only to show the ones not already used, "3D Modeling, 3D Rough Layout, 3D Surfacing, and VFX".