I have used Creative Google Maps App, which has provision to customise the style, and I tried the code listed below, but this did not work (not sure if this is complete code?)

Any suggestions as to how I could offset this map?

Thanks for taking an interest!

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var center; // a latLng
var offsetX = 0.75; // move center one quarter map width right
var offsetY = 0.5; // center

var span = map.getBounds().toSpan(); // a latLng – # of deg map spans

var newCenter = {
lat: center.lat() + span.lat()*offsetY,
lng: center.lng() + span.lng()*offsetX
};

map.setCenter(newCenter);

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This isn’t a WP issue though, it’s a Google maps coding issue. You’ll get people much more knowledgeable about maps coding than the folks here if you ask in the Google maps support forum.