How many prepositional phrases in Ephesians denote our position in Christ?

Les teaches that in the six chapters of Ephesians there are '90 some' prepositional phrases, and they consistently denote the believer's position in Christ—phrases like 'in whom,' 'in Him,' 'in this,' or 'in that.' The whole book, he explains, keeps driving the fact that believers are now in a peculiar position. Unlike Romans, which shows all were hell-bound, filthy, wicked sinners and then gives the Gospel remedy—Christ has already forgiven, died, and paid the payment, and all we do is believe it—and unlike Corinthians, where problems had to be reproved, and Galatians, where legalism had to be corrected, Ephesians does not deal with those things. Instead, Les says, it hammers home that you are now positioned in Christ, in the body, and the roots of that position appear in verse 3: positioned in the heavenlies. We are not an earthly people but a heavenly people, though we are on the earth.