Chrome Extension Question

1. I am using a development site so if I add this URL and later push to real live site will the reviews still show ?

2. I want to import a lot of reviews so for a single product can I import reviews from multiple products from aliexpress and amazon ? Or it will only work with one product ?

3. I am using a multi site network so if I try to import reviews to other sites for other products will this cause any issues ? how can handle this issue ? Please help me thanks