Being able to create folders and organize vehicles into them would be very useful in the workbench. This could allow us to keep (for example) planes in one folder, boats in another, custom made vehicles by themselves, and anything else we want to keep organized. It is a little inconvenient to need to scroll through a huge list of vehicles in the load menu to find the one I'm looking for. If there were folders added, I could just click on my boats folder and find the boat I'm looking for much faster.