Blueprints in constant combinators

[Skybeach88]

I was thinkig that it would be very useful if we could drop a blueprint into a constant combinator and have it put out the entities that are in the blueprint. So if a blueprint has 1 assember machine and 2 inserters then when youndrop the blueprint into the constant combinator it would output 1 assembler and 2 inserters. I feel that this would be useful to have a factory set up to create and store in a chest only the materials needed to fill a blueprint. You coud also use it as a check to let you knownwhen there are enough materials to build toe blueprint