Whether the appeal against the first-instance cost allocation was admissible.
The appeal was inadmissible because the appellants did not have standing to seek a different allocation involving E.________, and B.Z.________ lacked a legally protected interest since no costs were imposed on her.
The settlement expressly waived costs and party compensation. The first judge only charged each appearing party with its own court costs; E.________ had not yet proceeded in the second action, so no costs could be allocated against him. The requested three-way sharing would contradict the settlement and exceeded the appellants' procedural entitlement.