Φίλιππον ἐπιστῆσαι τοῖς πράγμασι τούτοις → let Philip have a hand in the business, surrender control to Philip
κἀκεῖ: κἀκεῖθεν, κἀκεῖνος, Ἀττ. κράσεις ἀντὶ καὶ ἐκεῖ, καὶ ἐκεῖθεν, καὶ ἐκεῖνος.