Hi, when creating permissions and using operators, is there an option to make objects(relations,parameters) mandatory or optional? In my example I would like to create a permission check like the following: "permission insert = rel1 + rel2 + rel3 ". rel1 should be mandatory, so that when rel2 or rel3 are defined, but rel1 is empty, it should return nothing. Opposite way is also necessary: If rel1 and rel2 and rel3 is defined, it should give back only objects which have relation to all three. Any idea how to create the permission using the available operators?