also, if you want to get rid of the wallet console you've shown above you can start it with
javaw -cp burst.jar;lib\*;conf nxt.Nxt
from inside the folder.
I've just now tried this for the first time however!! But everything is working!-)
furthermore when working with the universal Wallet Keepass2 is a nice to have!-)
And when everything is setup and your heavily encrypted Database stored on maybe google Drive or elsewhere, the Chrome Addon CKP(in beta!)
You'll still need to use a long and secure password! But only one for multiple Accounts!