Run a "Screen" session as a specific user

[Gaia]

Hi,

I'm trying to keep an app running in the background under a specific userid. When I run "screen app_name" as root it keeps it running in the background.

I enabled Normal Shell for a user, but still can't seem to run Screen as them, is there a specific option that needs to be open? Or anyway as root that I can force the screen session under their user?

Each time I try to run it on the user account with Normal Shell, I get this error:

Must be connected to a terminal.

I can run the application without screen, but that would mean I would have to leave the SSH connection open(which I want to avoid).

Thanks!

[InterServed]

You might "su" as that user and then run the screen.

su - username
screen 
start application -> example ./user_application
ctrl+d (to detach from the screen)
ctrl+d (to exit su )