So, for my understanding, you defined two ranges that cover the number of characters in the target and the number of characters in the template (screen). And then the macro is replacing the target with the screen. This is awesome!

Is it possible to do this with lines, paragraphs or some combination (characters in the target document and paragraphs in the screen document) or does the character count make it the easiest? And does the character count for each document have to match?