The Galaxy promotion website states, "[...] an afterdeck that serves as a dedicated hangar or sizable cargo hold, [...]". Does this mean that this entire afterdeck area is a cargo grid of 64 SCU or just the sides of it? Can we only transport either 64 SCU or an XXS ship in the afterdeck, or can we transport both at the same time?
Cloud Imperium
The 64 SCU cargo grids are 2x32 grids spaced at the edge of the hangar and do not interfere with the hangar metrics, allowing both an XXS ship and 64 SCU to be stored simultaneously.
starfarer.space · Q&A: RSI Galaxy