Ok i have a weapons and gear mod im working on and it is working so far. Items can be bought from stores etc.

How can i get them into the in mission caches. Where ryana says "just walk right up to the package to pick it up" " goood can always use more ammo" because we found the blue sky beam that said a periphery had a gauss rifle... What do i need to do to get my new weapons, ammo, and heatsinks into the grab bag?