Yes, you can. You can only use Amazon.com (US) as a source store within SellerRunning, however, you can integrate the below marketplaces as a selling store within your account:
Amazon.ca (Canada), Amazon.com.mx (Mexico), Amazon.co.uk (UK), Amazon.de (Germany), Aazon.fr (France), Amazon.it (Italy), Amazon.es (Spain), Amazon.ae (United Arab Emirates), Amazon.com.au (Australia), Amazon.sg (Singapore), Amazon.jp (Japan), Amazon.sa (Saudi Arabia), Amazon.pl (Poland), Amazon.se (Sweden), Amazon.com.be (Belgium), Amazon.nl (Netherlands) and Brazil.br (Brazil)