Help creating and adding models to spawn menus.

In the old days of GMod 12, one could simply add a model (Or several) to a custom spawn menu with the click of a button. Addons came with custom spawn menus, so that you wouldn’t need to add items manually. When GMod 13 updated, the spawn menu system changed. Through trial and error, I managed to create and name multiple necessary spawn menus, but I have no idea how to add models to these spawn menus. In the old days, I would simply add a spawn menu manually in the settings/spawnlist file locations, but I have no idea how to do that, either.

I patiently await assistance.
-Edit- Never mind, I have found the solution. This post is no longer necessary, so, would an admin please remove this thread? There’s really no need to clutter up the forum with useless threads.