I'm just starting to explore AC21 for the first time, having been working in AC19 for a few years.
I can't seem to find the 3D Window Settings dialogue to fix the dimensions of my 3D window anywhere. It seems to have been replaced by the 3D Styles interface, which has no info on the current pixel dimensions of the 3D window.
Where can I accurately define the dimensions of the window in 21? I rely on this for setting up accurate views for Photorendering, aligning cameras to photos for montages, etc.