Kernrechtsfrage
Whether the appeal against the cantonal court's interim-cost order was admissible under Art. 93 BGG.
Extrahierter Entscheid
The appellant failed to show any irreparable legal disadvantage; the appeal was therefore inadmissible.
Extrahierte Begründung
The challenged ruling was an interim decision. For such decisions, admissibility requires a showing of irreparable harm under Art. 93 para. 1 lit. a BGG, and the appellant bears the burden of demonstrating this requirement. He did not do so.