For documentation purposes I'm looking to hide certain areas on assembly drawings that are considered sensitive and proprietary. I'm hoping there's an annotation or drawing feature to add a black box (color is not important) over these areas on the drawing. Hiding or suppressing individual items won't work. I know I could create a dummy feature in the assembly model to occupy the space but for time saving purposes I'd rather do it on the drawings. I'm trying to avoid using paint and screenshots.

Thanks in advance!