It goes in the OnRecordStart Rule -- Not in the body of your form.
If you are using a data file that is sequence with two "TicketFront" followed by FillerFront1, FillerFront2, FillerFront3.
and you have corresponding forms 1 ticket, 3 fillers, and a couple backs named in the SetBodyPageUsage.
//OnRecordStart
if (Field("Ticket")=="TicketFront")
{
FusionPro.Composition.SetBodyPageUsage("TicketFront", true);
FusionPro.Composition.SetBodyPageUsage("TicketBack", true);
}
else if (Field("Ticket")=="FillerFront1")
{
FusionPro.Composition.SetBodyPageUsage("FillerFront1", true);
FusionPro.Composition.SetBodyPageUsage("FillerBack", true);
}
else if (Field("Ticket")=="FillerFront2")
{
FusionPro.Composition.SetBodyPageUsage("FillerFront2", true);
FusionPro.Composition.SetBodyPageUsage("FillerBack", true);
}
else if (Field("Ticket")=="FillerFront3")
{
FusionPro.Composition.SetBodyPageUsage("FillerFront3", true);
FusionPro.Composition.SetBodyPageUsage("FillerBack", true);
}