Show Bill Entry PDF side by side with the bill as it is being entered

A person has to manually read a bill, then enter all the correct details into the corresponding fields... it would be nice to have the pdf side-by-side with the bill entry so you can copy/paste invoice numbers and descriptions across rather than retyping.

Or at the very least, if not side by side, then allow a visual of the attachment to be shown below (rather than just a link).