There are several places you need to change

  1. in wprentals\js\ajaxcalls_add.js

add componentRestrictions:{country:”fr”}

Where fr is the country code for France (as example)

in the options array like

options = {
bounds: defaultBounds,
types: ['(cities)'],
componentRestrictions:{country:"fr"}

};

2. in wprentals\js\control.js – same as above –  you need to look for geocode and amend the places found..