It is configured by activating the smart box option in the menu:

System->Web tables->Booking Grids:

This will only affect bookings made via Web/App.

From this menu you can activate the smart box so that no gaps are allowed.

At the bottom you can activate the tracks you want to show on the web and their position.

If we indicate 60 minutes does not leave gaps of 30 and will only work with the booking box this will only work if we have configured on the Website that the on-line booking process is with the new booking box.

This will be configured from:

System->System Configuration --> Web-APP, Web page: