Paste as plain text by default ?

[Sull5]

I've asked this before and did not receive an answer I'd still love to know if this is possible with 3.4.7 ?

Question:

Option in the editor "paste as plain text" in IP.Suite 4.0 is there is way to enable this for all members ?

Would also like to know how I can change mass change this in 3.4.7. Members tend to paste from websites and this really makes post look ugly. 

Thanks!