Any time you are in sketcher you can double click the constraint to edit it, clear the entry field and type in = then select the constraint you want the value equal to. This builds a relationship between the constraints.
Before you start in admin mode you need to edit the CATEnv file to add directories for:
CATReferenceSettingPath=
CATCollectionStandard=
If you do not specify these directories, you will not be able to start V5 in -admin mode.