I have an Electrum warm wallet set up on my mac.  I'd like to add a wallet, that is a watch only version of my cold storage Electrum wallet, to this same mac.  I think this requires a bit of command line prowess that has this newbie a bit nervous.  I understand how to make multiple wallets using btc core, but am a bit hazy on Electrum.  When I try to install Electrum, my existing warm wallet loads.  Makes sense, but not the intended effect.  Can some of the Electrum pros help a guy out?  Thanks all.