combination of cTrader Id and cTrader Accounts

Hi

I want my Demo accounts to load a larger set of custom indicators than my Live accounts would. The Live account is to have very few indicators so they take up least amount of RAM. Thus opening charts or changing pairs will be very much faster in Live account than in Demo, which is for experimenting and creating new ideas. How can I achieve this by combining different cTrader Ids and cTrader Accounts?  Is it possible on one computer or do I need another computer?  I have read previous posts but I didn't find an answer. Thanking you.