Track selection is governed by using the select button on the required channel number and then pressing M1+Select (i.e. M1+Shift 2 + rewind). That will select all the data in the track that you have selected on the track/fader area.
Example...
1. Press 'Channel select, on track 2. Highlight shifts to track 2
2. Press M1+Shift 2+Rewind. All data in track 2 should now be highlighted.
To select different time areas seems complex at first but is very easy once you get used to it.
Depending on which mode button you have lit controls how the fast forward and rewind buttons behave.
For example press Shift 2 + fast forward will put you in marker mode. Now when you press rewind the now time will jump back to the previous marker (if there is one) and likewise fast forward will jump the now time forward to the next marker(if there is one)
Shift 2 + Rewind is Select mode and the ff and rewind buttons will jump between 'from time' & 'thru time' respectively
Shift 2 + Stop is Loop mode - ff & rewind jump from loop start to end respectively
Shift 2 + Play is punch mode - ff & rewind jump from punch start to end respectively.
To set these regions put into the relative mode and then press M1+rewind to set 'from time; and M1+FF to select 'thru time'. Then simply turn the mode on by pressing Shift1+required mode key.
For example to set up a loop.
1. Put into loop mode - Shift 2+Stop.
2. Set loop start - M1+rewind
3. Exit loop mode to allow full use of transport buttons - Shift 2+Stop
4. Use transport keys to move to desired end time (remember you can use the marker mode/select mode etc to jump to various points)
5. Re-enter loop mode - Shift 2+Stop
6. Set loop end - M1+FF
7. Turn on loop mode - Shift 1+Stop
Sounds long winded I know but once you learn the modes and get used to it you can select regions in split seconds.
Hope this helps a bit but have a play around you'll get the idea.