I would like that. And I have more ideas, because that reminds me strongly to viewtopic.php?f=6&t=76499 Blueprint Book is not enough for me
Where I described more ideas to modify blueprints with something I called “filter” and “comparator”. I made an example of how that could work in viewtopic.php?p=510018#p510018
Well, that example is a bit huge, but the basic idea is this: you have one blueprint and create another one out of it by filtering/modifying. Like in the above example: have a bp, use update-modifier on it and paste the resulting bp.
Or you have two blueprints and can compare both to create a third. But that is much more advanced.
The point is, that you can create a cascade of filters/modifiers and can use during this generation all formerly created bps.