Want to show a search form after I click on a comfill button.

Hello All,

I am in a little confusion about one thing.

I have a comfill button for contact.name field in the interaction form. When I click on it i get all the contact names at a go. I want to put a small search form in bewteen where I can write the initials of the first name and last name which will in return give me a small list of contacts. 

Could anyone tell me how can I do that in the link file or somewhere else..

Thanks in advance :)