With the way the map system is configured, that currently isn't an option since it isn't a standard a link but a Google map element that is being clicked.

When a visitor is in a category map where there are quite some markers, it would be helpful to open a new window each time a marker is clicked. With current version if the visitor want to check another spot, he will have to come back, zoom the map, center the map, and others before he can visit another one, very inconvenient.

Where should I make the change to enable this function?

Thanks