a) this is already possible at the bottom of every address in the section called address block.
b) use the word document icon (in the manu bar on ever constituent) to quickly create a letter (if that is one of the "other documents" you are referring to.
c) use the printer icon (in menu bar on every constituent) to print labels in one fell swoop.

I would love to be able to copy addresses and other grayed out information to add to spreadsheets or emails as needed.