Guess nobody knows
Don't judge from the response dude..Their are lots of Creative guys from the corner of the world
Why don't you try for this...I hope from the post you are still on DEV??
Self learning is most important than guidelines again it my feeling
I'm not judging at all. I put a smiley face.
Look at this link Target and Bottom Up Versions
You are right about workflow, for standard target you cannot have workflow. The reason why people use Standard Target is to push down a top level target. So children will get an allocated number. (depends on how business does allocation)
You can still aggregate.