Guidance Needed, for Bed Visualizer Plug-in

After installing the BV Plug-in, When I tried to use the BV Plug-in, I got a message to install some Gcode in Setup. After reading some more, I found 4 different scripts, and I am not sure which script to use for My Ender 3 Pro. And where to put the gcode??

Thanks, for any pointers in the right direction.

I'm going to go on a wild guess that your firmware is probably using bilinear leveling on Marlin, so in the plugin's settings you want to use that from the linked examples.