Hello I would like to see a /dev/null upgrade so it keeps a stack of that item in the backpack that is configured in the filter so void upgrade will leave 1 stack of like cobblestone so you are not voiding all cobblestone and being out of it all the time! Unless its already a feature

It is not currently a feature, and here's why:

• You can very easily remove the item in the void filter temporarily (as it is just a ghost item) and then put it back when you want to void the extra again.
• You can use the restock upgrade to resupply 1 stack of any given item directly.

However, I might add a button to toggle modes on the void filter between total deletion and checking for 1 stack, as suggested. It's a minor thing for now though, because of the 2 workarounds listed above.

Might I suggest https://minecraft.curseforge.com/projects/p455w0rds-things . I have implemented a /dank/null which is a /dev/null on steroids. I'm posting this response with permission from gr8pefish. <3

Add Dev/Null Functionality