var protoTree = {
            expander: {
                type: "cspace.permissions.expander",
                controlledBy: "recordList",
                permissions: currentUserPerms.permissions,
                operations: ["create", "read", "update", "delete", "list"],
                method: "OR",
                tree: {
                    someField: {
                        optionlist: "{model}",
                        optionnames: "{model}",
                        expander: {
                            type: "fluid.expander.noexpand",
                            tree: {
                                selection: "${selection}"
                            }
                        }
                    }
                }
            }
        };