I find the Powerloader to be very useful. When you start to load V4 from the library, Powerloader pops up, and allows you to select what morph sets you want to have loaded with V4, like She Freak 4, Aiko4 etc (if you have them), and also Morphs++.
You do not need to install Powerloader, but you may find it useful.
EDIT:
thd777 beat me to it 