Whenever "Set recipe" is used for items like inserter it always set "Voidcraft" recipe, but not "+void flux" or "+coherence infusion".
Is there a way to select other recipe other than doing manual conversion in combinators like "Inserter" -> "Coherence infusion inserter", "Belt" -> "Coherence belt", etc.?

If it is currently not possible I see the following solutions:
1. Always use "+coherence infusion" by default
2. Or most advanced tech available
3. Add possibility to do some automated recipe conversion in the selector combinator like it is done for quality transper. Not sure if this is moddable

There is a mod option to enable a LOT of voidcraft recipe signals, but I don't know if these would actually help.

Also, what are you doing that require this? I can understand Coherence recipes, but the only difference with Voidflux recipes is that it is faster.

I'm building a simple mall, that produce all buildable items, available with Coherence. Want to avoid byproducts, because efficiency is not important there.
All voidcraft signals can be enabled in options, but that's not enough. In vanilla my mall have one constant combinator with requests: 50 belts, 20 splitters, 20 inserters, etc. And it dinamically changes recipe when any item is missing. I want to do the same in voidcraft, but can't request for specific item without dealing with byproducts, even though I have coherence infusion researched

Well, I can't help you directly, but I will point out that generally a mall has multiple buildings because a single building isn't generally fast enough without speed beacons.

Not only does Voidcraft not have speed beacons, but voidcrafting end products like inserters is VERY slow, and it only get slower the higher the item is on the tech tree.

Like 10 buildings voidcrafting with void flux wouldn't be able to keep up with the player's handcrafting level of slow.

I don't remember the exact time, but I don't think you would want to wait 10 minutes for the voidwork to finish making 50 blue belts before it starts making splitters.

I do agree that it would be nice, and the most likely solution is an option in the selector combinator, but it is definitely NOT the correct solution for a mall.

Unfortunately, there isn't a lot I can do here. The process by which Factorio determines which recipe to select based on a signal isn't something that is exposed to the mod interface, as far as I can tell.