Problem description: Missing sets
Steps to reproduce:
1. Try to use setP :-)
Generally, there should be all the sets that used in computer engineering, right. setP for creating NPC set of complexity calculations, or setE for RE (not real, but, REgular like regular expressions...)
I agree. Another example would be setH, for Hamilton quaternions. N, Z, Q, R and C are only some basic sets which notation may require modified characters.
LaTeX has a command \mathbb to draw blackboard bold letters. A command "mathbb" could be added in the Formula Editor.