How can you go back to bigbox and exit from an emulator with a controller?

[snoopybooh]

Ok, first of all sorry for the horrible title, but I wasn't able to find a decent title for the topic!  Simple question: with Retroarch I'm able to exit from RA itself using a X360 controller so I can go back to Bigbox while I'm in the sofa. On dolphin emulator you can do it too, I've just assign a special command through dolphin itself by assigning l3+select to exit from the emulator, but how can I achieve that with Emulators such as Demul, Model3 and so on? 

[DOS76]

You have to set up your controller automation in BB to be able to exit out of emulators with the controllers

[ckp]

On top of what @DOS76 said, I've found that you also need to add this for some emulators by adding it inside your Manage Emulator-> Autohotkey tab:

$Esc::
{
    Process, Close, {{{StartupEXE}}}
}

So, if it still doesn't work with some emulators after enabling this in controller automation settings, add the script above. Demul and SuperModel are a couple I needed this for.