External Lookup Fields be used as basis for display logic

[#1]

Description -

Why is this feature important to you - I can reduce fields by using the External Lookup but I cannot then limit the display of other fields based on my value output

How would you like the feature to work - Perhaps Display logic will also need the ability to use the API

Current Behaviour - Display logic only on Radio Buttons, Normal Dropdowns and Checkboxes

[#2]

This is a key request of mine as well, and the main blocker to expanding use of the external lookup fields further into our forms. Their functionality is awesome, but they need to be a little more plugged in to the rest of WF to fit in workflows..