When running PHYSVAL derivations for later use in the FTAG TDD, it would be nice to have various pseudo tracks containers available. This MR provides the
AddPseudoTracks flag that can be specified in the
preExec such that these various containers are available in the output DAOD:
The flag is turned off by default, and nothing is changed to the current PHYSVAL workflow unless the flag is turned on. If the flag is on and the relevant track containers are not present in the
AOD, an error is raised.