Would it be possible to have an extra Height Unit available called something like “Form Units” which is equal to the raster height in forms?

This is the unwanted result when a fixed height in pixels is set, is shows extra whitespace then the height is to much or a vertical scrollbar when the height is set to low and it also depends on the client screen screen size and resolution. Especially on small handheld devices this is annoying.

Ideally it should look like this


