How to launch multiple instances of AE via terminal and CMD ?

Hello All,

Long time ago I knew that I could have multiple instances of After Effects opened and work in different projects at the same time. Since I am old, I forgot that. There is a flag that I used to use in order to do that, but I can't remember at the moment. I know that the terminal path is different than the CMD path, if someone out there could refresh my memory I would appreaciated.

Kind Regards.

Manuel Gonzalez