Suppose, I want to take a the following values as input from user while authenticating a connection: 

1. Field1
2. Field2
3. Field3
4. Field4

The field1 has a drop-down from which a user has to select. Based on the drop-down value selected by the user, I want the following actions to take place: 

1. Showing up of field2
2. Populating default value of field3 
3. Showing up of field4 based on the value supplied on field3
    

I haven’t found an example source code for dynamic fields addition and hence I’d be thankful if anybody could let me know if this is possible in zapier and how can this be achieved in a CLI app (would be really glad if there’s a working example on addition of dynamic fields in zapier CLI app). The zapier-platform-core version being used is 12.1.0.