Procedure Block for "Output Redstone Signal"

I would love if custom blocks could output redstone signal based on a trigger (for example, observers). It would make the creation of custom redstone components so much more versatile, and with the new "direction" related procedures this could also be very powerful.

I'd like for the new procedure block to be split into 2 parts, each with some parameters:

Turn redstone on at <side> <power (1 - 15)>

Turn redstone off at <side>

I'm not sure if this is possible. I've done a bit of looking in the code for the redstone repeater but ultimately didn't find anything understandable regarding how redstone travels though it, and to which side.

Thanks Klemen you're a cool developer :)