Following the release of version 1.9, a user can select whether they would like the timetable or the classes tab to be the default, they can also disable one or the other but not both at the same time.  

To change the default order follow the below steps:

Unlock the padlock the top right of the APP

Enter 4 digit admin code

Navigate to SETTINGS>Device Settings

Under Navigation tabs hold down the 3 grey lines to the right (as below) that correspond to the tab you would like to move

The tab in position one (top) will be the default that a user sees first

To disable a tab:

Toggle the relevant tab to white (off)