How to render orthographic plans and sections with precise scale and DPI for printing

To keep in mind, this is all coming from an architecture student who has a physical printing workflow like: "I have an A2 sheet, inside it i want to insert a rendered plan exactly 198mm x 420 mm in a scale of 1:100, at 300 DPI"

I just found out how to make rendered plans and sections, which is an incredible feature, but it seems to be lacking alot on precision and usability for printing purposes.

I followed the process for making rendered plans detailed in this video: setting the view to "top", adjusting clipping distance to cut through the model, enabling ray-tracing, and then creating a new image. The problem is, I cannot precisely input how much of the model I can see in the image in meters (since it's orthogonal, the width and height of the image corresponds to meters in the model). I can only zoom in and out in increments that change the size of the image by something like 10%, which does not give enough precision. This means that, if I know how much of the model I'd like to see, I will have to zoom out enough to contain the size I'd actually like, eyeballing it.

Additionally, it's also not possible to set the size of the image in millimeters given a certain pixel density (DPI) which would allow to set the scale of the model in real terms like 1:100, 1:200 and so on.

What this all means is that I have to zoom out enough to contain the render I actually want (rendering pixels I won't use), and then I have to render at a resolution much higher than I need in order to make sure it stays sharp when I scale it down (even more rendering I don't need). If I could instead input the size and scale with high precision, I would be able to render the image at 100% scale and have a more effective render, as well as outputting an image in the right physical size.

I couldn't find a solution for this, is it possible to do this in Twinmotion? If not, is there somewhere I can write all of this as a suggestion for future development of Twinmotion?