Arnold Renderview is the default for me and many others, and I'm always trying to get it into my workflow and get use to it, but... it is like it has a mind of its own inside max.
The ideas:
- A keyboard shortcut to open it, (I ask about it last year, it was put into the beta request list by @madsd )
- Autosize the window (like the legacy Frame Buffer); the legacy FB "remembers" where you leave it last session, and also it fits the image into the window to a size that do not force it out of the bounds of the screen or the prefered position sizes of the window.
- Fix the weird lag you get (at least I get) when resize it or move between monitors.