GGM VIEW - I would like to automatically display one or more cameras when launching the application

Yes, you can.

Application Main Menu, then Application Setting,  then Launch Setting

3 possibilities: 

- Play Favorites Group: This is a group of cameras that you have previously created.

- Read Favorite Device: This is a camera that you will have previously added to Favorites

- Play the previous one: This is the last camera layout used when you last logged in to the app.

To add a camera to Favorites or create a group of favorite cameras, click here