Add-on to registration part

I need a small add-on to my site. I have two gym locator sites, where people can add their gym profile. When people submit a gym profile, I'd like to have them confirm their address on a google map, right after they have entered their address. I've made a small illustration here: <[login to view URL]> The pin placement will then be stored, so that it appears correct on their gym profile on the site. None of the other steps should be changed. I just need this one to be added. This feature will be added to 2 sites. Both sites are identical. ## Deliverables I need a small add-on to my site. I have two gym locator sites, where people can add their gym profile. When people submit a gym profile, I'd like to have them confirm their address on a google map, right after they have entered their address. I've made a small illustration here: <[login to view URL]> The pin placement will then be stored, so that it appears correct on their gym profile on the site. None of the other steps should be changed. I just need this one to be added. This feature will be added to 2 sites. Both sites are identical.