Dynamic Field Type in the Thing based screen

Hi Everyone,

I have created a custom field to fetch the Employee details (of type OVS) for my custom BO.This field should act as LINK to navigate to Employee_TT screen unless the edit icon near by it is pressed.

When the edit is pressed again it has to act as an OVS type field to show the Employee list.Kindly provide me an approach.

Regards,

Arjun