The Wizard creates (or overwrites) an ObsUnitSet in the system view. Its name is like "xxx-SFI"
where xxx is the target name. For each run of the Wizard it will either replace the SchedBlocks
in the ObsUnitSet or create a a new ObsUnitSet, depending on your reply to the initial dialogue
box for overwriting the current program. Each SchedBlock it creates contains only one Observing
Target. The number of SchedBlocks it creates for a run depends on the parameters, mainly angular
resolution and largest angular scale. The algorithm used to split the observation into SchedBlocks
is described
in the below.
The ALMA OT Team, 2012 May 25