This may have been answered somewhere else, or maybe I'm just missing something extremely obvious, but what is with all of the Age of Extinction Generations figures have a peg near the rear/under crotch area? The only figures I have are Evasion Optimus Prime, Slug, Scorn, Strafe, and Crosshairs and they all have it. Maybe Hasbro planned for a larger Grimlock that the figures could ride? Maybe for flight stands? if so, which ones, and where can we buy them?