I'm not sure about sasha16, but as for all other figures I've used, simply scaling the figure down to 10% should be plenty sufficient. Its clothing should scale right along with it and it should still pose as normal. Maybe there's something up with sasha's cr2 that is causing problems?

And poses do save with the figure when you save a cr2 to the library. V4/M4 both have their feet posed flat on the floor when loaded from the library, while their zero pose has their feet angled downward. Load classic Jessi (Poser 6) from the library and you'll see her arms are at her sides.

Scaling should also save with the cr2. I've done extensive scaling on various figures and saved them to the library. They all load back in with their scaling still as I saved it.

To focus the camera on a character or any other object you can use the Frame Selected Object icon at the top right of the screen - 3rd icon from the left just past the area render button.

Try scaling a standard V4 with clothing on and then pose her. If she works as expected then it may be an issue with the Sasha16 cr2. If so then contact Karina about it and see if he can help.