Communicate Between 2x Mega Plus 2560 R3 Boards Using 2x ESP-01S ESP8266 Modules

What are you even talking about? There is no schematic or code! I did not even get that far... I'm stuck setting up the proper library.

Now I know why there are no answers on this forum. Literally every thread I've read just has people like you asking for more and more and more information with no actual useful info. Not a single thread I've read actually answered the persons question or solved any problem.

Have you ever used an ESP-01S with a Mega Plus 2560? If yes, what libraries did you use? You do not need any info from me to answer those questions.

Thanks.