Hi Will
Sorry for my non-response on the above.
Is there anyway to control the default clay render grey under the render tab in please?
I am still unsure what you are asking for. Do you want to control the clay render
color? Octane does not allow setting the clay render color. Instead you would need to assign a single Rhino material to all geometry in the scene and set the color to that material.
i run a couple monitors generally always scale down and float to one position along with everything else - this would be really helpful. could it remember position also?
Do you want the Viewport position remembered, or the floating Rhino preview window? The Viewport position should already be remembered (although I recall that if it is off the main screen space it will probably be re-centered on your main monitor (so it doesn't open off the screen).
On the last point, thanks but now it always contracts them, is it possible for the settings tree to retain its state. i kind of want control of whats open and whats not and not having it either all open or all closed. thoughts?
You can tick Settings->Open Tree Settings On Render Start, and the tree will always open when you open the Viewport.
Paul