Shareplus Porting Over

Hi, I have 2 lines that I want to port over from another telco. One of the lines is the main line and the 2nd line is a Shareplus equivalent.

I had signed up to port over my main line from the other telco. I would like to port over the 2nd line to Shareplus under the main line as well. Do I need to wait for my main line to be activated in Starhub first before porting over the 2nd line?