Simple way to control which lists appear when the Meta4Object opens.
BEGIN Action_preload StepPreload
Idchannel = "SRCO_OR_MN_JOB"
Idnode = "SRCO_OR_MN_JOB"
Cancelif = "Notpreload"
Restrictliststo = "SCO_TR_H_HR_JOB.SCO_TR_H_HR_JOB,SRCO_OR_MT_JOB.SRCO_OR_MT_JOB"
END
This Meta4Object has three lists connected but only the two lists indicated in the attribute "Restrictlistto" appear.