Can evidence presented by defendant's attorney on behalf of plaintiff be updated to include missing information?

QUESTION PRESENTED : The District Judge in this case directed the plaintiffs attorney to submit . evidence through the defense’s attorney. Can that evidence be presented by the defendant’s attorney on the behalf of the plaintiff, be updated to include the correct and missing information that was submitted? A substantial amount if relevant information to include witness statements, official government findings, academic reviews, emails and text messages were not included as evidence which would have collaborated the plaintiffs claims, and thus countering false information submitted | by the defendants. : i