I think many people have a situation when they need to move the whole part of a session from one place to another. For example we make some main idea of the song and begin to see some entry-part, which we want to place before the main.
Range mode lets us copy a part of session, if all tracks are selected (Ctrl+T function). For example: we can use it when we need to move the whole rest part of the song (session) for some quantity of bars to the end // or to copy desired part from one place to another (Ctrl+X → Ctrl+V). In the GIF-picture I select the range of only one track, then press Ctrl+T combination - this selects only the tracks, but not automation tracks. To select the whole bunch of automation tracks - I need to select them one by one (with Ctrl).
What was nice if Ctrl+T could select All Existing Automation!?