i'm not sure if your copy/paste didn't show up properly, but if you have the pronto hex code from Denon's excel document, you use the Universal Browser in CCP to add the hex command to any button in your file.

Click on the Tools tab at the top of the screen, then select Universal Browser.  Then click on the Hex button.   copy/paste your prontohex code, then click and drag the code onto a button or inside a macro window.