Set rating 5 star by default

Hi WPdiscuz!
Thank you for fantastic plugin.
I have a question if you can help me please.
I integrated rating function to review woocommerce product https://haiphongtours.com/tour/hai-phong-city-tour/. It’s gray out by default (0 star).
My question is how to make it 5 star by default. If reviewer wants to change star rating, he can change to 4,3,2,1 later.
Similar to Tripadvisor review: https://www.tripadvisor.com/UserReviewEdit-g303944-d6024348-e__2F__Attraction__5F__Review__2D__g303944__2D__d6024348__2D__Reviews__2D__Hai__5F__Phong__5F__Tours__5F__Hai__5F__Phong__5F__City__5F__Tour__2D__Hai__5F__Phong__2E__html-Hai_Phong_Tours_Hai_Phong_City_Tour-Hai_Phong.html
Please help!
Thank you