Drag Logic project from external to desk top?

Morning,

Just checking that I have been doing this correctly for a few years.

I save all my Logic projects to an external drive (and make a back up)

When I go back to work on projects I just click on the project within the drive and open/work on it, is this ok?

or am I meant to drag it from the external drive to the desk top, then open/work on it, then drag it back to the external drive at the end of the day?

Just checking!