High APRS Digipeater
To configure for a high or low digi only, you probably will not need profile switching as we normally use it for a tracker. Unless of course you want to switch profiles to alert you as to a high or low temperature event or a low voltage situation. The temperature probe is built into the Tracker2 but there is none in the T2-135. Normally the screen will look like this below.
 Setup as a Tracker
Need more info here, some various thoughts on what you might want to switch on. Also comment on KISS and profile switching.
This profile is set up to send a different text message when there is no GPS fix - Profile 2.