I am having trouble finding controls for the LTV as well. I have controls for ATV and CTV that came with the package, but can't find any info on the LTV. I can't figure out how to fire the mains or hovers on the craft to reduce altitude.
I figured out through trial and error that 'a' is airlock. It's 'd' key on the CTV. 'C' key controls camera modes on LTV. 'G' key is the gear. That's about it. Can't control the thrusters.
Those guys give such great detail in the manuals on CTV and ATV, but seems like they forgot about LTV.
I can't find info in the Vessel help as posted above.
Until I can, I have two guys stranded in lunar orbit waiting to land. lol