Hi,
Is a method, to load Bing map to the tour with already exhibited coordinates, without copy/paste the code to each tour?
yes, this would be the default and recommend way - but the other way is possible too - the Bing map is a normal <plugin> which can be loaded and removed anytime.
Just look at the bing maps examples from the viewer download package or look at the xml code from the MAKE VTOUR droplet.
Best regards,
Klaus