note that the Edit/Select Mode/Rectangle mode does allow for your doing a discrete lasso over selecting clips regions or segments, not quite over all tracks at once as does Edit/Select Mode/Range.
you can also use some so called boolean operations, while pressing Shift (AND) or Ctrl (XOR)...
this is the general and standard multi-selection model which pervades qtractor ever since...
nb. the same common standard applies to the MIDI clip editor.
note that the Edit/Select Mode/Rectangle mode does allow for your doing a discrete lasso over selecting clips regions or segments, not quite over all tracks at once as does Edit/Select Mode/Range.
you can also use some so called boolean operations, while pressing Shift (AND) or Ctrl (XOR)...
this is the general and standard multi-selection model which pervades qtractor ever since...
nb. the same common standard applies to the MIDI clip editor.
byee