Allow recording all monitors/selected monitor without nvfbc by recording the compositor proxy window and only recording the part that matches the monitor(s).
Allow recording a region by recording the compositor proxy window / nvfbc window and copying part of it.
Resizing the target window to be smaller than the initial size is buggy. The window texture ends up duplicated in the video.
Add option to track the focused window. In that case the video size should dynamically change (change frame resolution) to match the window size and it should update when the window resizes.
Add option for 4:4:4 chroma sampling for the output video.