we have SharePoint list where we want to configure which field should be shown or not for a group of cascading drop down. 

We have three Look up controls 1. Product Line, 2.Category 3. Service Type. 

We also have a list to configure which field on the form should be shown or not based on these 3 look up field combination.

Now how can we read this configuration list and show or hide form fieds.

With Nintex office 365 we could achieve this using lookup function and variable. NWC doesn't have lookup function nor returns DataLook up control as an object.