I looked at some of the answers to other posts about this subject, but I do not seem to be able to follow the directions given, maybe software changes have been made since those posts were made.

I need to change keywords used in the analysis for a page, but I cannot seem to figure out how.

Any assistance would be appreciated!

You need to go back to the Webpages -> Keywords tab and click "Update". Select "Your page and competitors' pages" and on the next step you'll be able to enter your new keywords/

That did the trick! Thank you so much!