This command determines if the resolution effects are added to the hit
positions returned from GEANT. If ON the x and y positions returned
have a Gaussian distributed random number
(with 
's determined by DX and DY in the routine GUOUT_SMDATA)
added to them to mimic the resolution of the TPC.
If a hit is outside the TPC's active volume after jittering, the hit position
is moved to the closest point within the active volume.
This command determines if the GEANT hits in the TPC are merged before being output. If ON then hits that are close to other hits are merged into a single large hit (``cluster''). If the size of the cluster is small enough, it is output as a single hit. Note that merging is done after hit ``jittering'' (if jittering is enabled).
This command determines if the 
values are scaled before being output.
The formula used to scale the values is
,
and is used to match the Monte Carlo's energy calibration to the TPC's
calibration, so that the normal PID routines may be used.
Note that the scaling is applied after merging, and/or jittering
(if either is enabled).
This command determines if a threshold is applied to the hits before being
output. To mimic the TPC's threshold, a threshold on the
of the particle (while above a pad row) can be applied.
Note that the threshold cut is applied after merging, jittering, and/or
scaling (if any of these are enabled).