To set beams auto-open at login:

1. Go to the  Apple menu and select “System Preferences”
2. Click Users & Groups
3. Choose your user on the left menu
4. Near the top on right, choose the “Login Items” tab
5. “Click the lock to make changes“ and “+“ to add Beams App in Login items

1. Select Beams in Applications folder

1. Leave 'hide' option unchecked.