Is there a way to add additional filtering to a custom field dropdown? Say I want to remove a few items from the list? I'm getting this error when I try because it is netsuite created custom field (custbody and not custpage)

SSS_INVALID_UI_OBJECT_TYPE That operation is not supported for this type of UI object: null. It is only supported for type: null.

why not create a duplicate field then hide the core field from netsuite on the new form 🤔

That's what I'm doing @Tyn Guardian. Was just hoping that since what I was doing was simple would be out of the box with Netsuite. Ah well. Thanks