Hi, I am new to quantconnect and python so would appreciate more beginner-oriented responses. 

I would like to know whether it is possible to manually change the universe of securities that I would like to feed to my algorithm while the algorithm is running live? And also whether it is possible to change any of the parameters in my algorithm while it is changing live? Reason for this is because I would like to do the universe selection myself manually but let the algorithim trade in and out of that security for me.

Thanks a lot!!!