There is the container option via [f] but I cant´figure it out.
Select the fluid in the wish for an item menu. Press the f key. Now, at the top it should say (contained) after the item name. This will spawn it in an appropriate container.
IE: #403 water_clean becomes #403 water_clean (contained) and will spawn plastic bottles of clean water instead of loose water.
I don’t believe you can control what container it spawns in.
This works for clean water. But nor for sprayable fungicide. Which is what I need. :-/
My guess would be that sprayable fungicide doesn’t spawn anywhere and therefore doesn’t have a default container. I could be wrong, though.
I suggest you instead debug the skills, book, and materials necessary to craft sprayable fungicide and then debug everything back to normal afterwards. That’s how I’d do it.