I was watching a tutorial and in it the guy locked down his render preview window and then changed some render settings and hit preview again. It opened up a new preview window for him, but whenever I try it, it overwrites the image in the open preview window.
He was using XSI 6 or 7. I’m using the Softimage 2010 trial.
So is there a setting somewhere to make the previews open in separate windows? I can’t find one anywhere or in the manual… unless it’s worded in some geeky cryptic fashion, and not something simple like “render preview in a separate window” 
Note that I’m talking about the button on the left-hand side of the interface under the Render tab that says “Preview”, not the interactive “Q” render preview you draw out in a view port.
And while I’m thinking about it, is there a keyboard shortcut for Render Preview?
Thanks. 