For that, the other day from Gmail activate the new option tab and the truth is that it is pretty good, but I have encountered a problem with the mobile app, and it only notifies me emails that enter the "Main tab ". Any mail that goes to one of the other tabs, do not notify me, so that I do not hear you come and get to go looking occasionally if something entered. Is there any way to enable notifications for these tabs? Because as much as I searched the settings, I have not been able to find it.