My question was related specifically to the Proconnect program.  

When I go to Proconnect, I can see the clients I prepared in Proconnect-(my business clients) BUT I can also see my 1040 clients that I prepare in Proseries Basic.  I also have just a couple of business clients I have used Proseries to prepare their returns, but I cannot see those business clients listed in Proconnect, ie the business clients in Proseries.

So a better question is-Why, when I open Proconnect, I can see my 1040 clients listed in Proseries Basic, but I can't see the clients in Proseries? 

The reason being is that I'd like to prepare, in Proconnect, the business clients I used Proseries in the past.