C4D already has some of this functionality where you can apply these overlays on the viewport by going to the viewport: options > configure.. > View tab. Or you can go to any camera's composition tab and add some different overlays there.
Would it be possible for these types of overlays to be added into the IPR?
Solved! Go to Solution.
Solved by peter.horvath6V6K3. Go to Solution.
Yeah I guess it would be a nice addition to the IPR. I just need to find some time to implement it.
Finally, composition overlays are added to the IPR window in C4DtoA 4.6.5. Sorry that it took so long.