All Pyanodon's inserters have whitelist/blacklist settings, even the most basic ones. Currently when pasting from an assembler to an inserter, it sets the filters to the recipe ingredients which is not helpful behaviour. Additionally, because many Pyanodon recipes require fuel with ash by-products, the inserters should explicitly be set to whitelist only the item being set in the circuit condition so they don't grab ash.

SCENARIO
Pasting a recipe from an assembler to a Pyanodon's inserter

CURRENT BEHAVIOUR
The inserter mode does not change from either blacklist or whitelist.
The filter is set to the first ingredients of the recipe.

EXPECTED RESULT
The inserter should be set to whitelist mode.
The whitelist filter should be set to the same item as the circuit condition.

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Hi,

All the filtering stuff on copy/paste is standard behaviour built into the base game which I'm hesitant to change unless necessary. I never worried about it previously since I rarely use filtered inserters. I believe in the expansion specific filter inserters are going away and all inserters will have the functionality similar to py so if it's not acting cleanly I'll probably need to consider a change. I'm busy for the next few weeks but after that will hopefully be able to have a look at how it's interacting in py and see if there's a clear clean solution to alter it if necessary.