Adding number of post “favourites”

Dear support,

we would highly appreciate your help for the following issues :

1) We renamed the post “favourite button” to likes.  Is it possible to add the related number of users who clicked on “favourite” beside,  (similar to the number visible nearby “Comments”)?

2) Could that “favourite/ like” be linked to the “like” of the media file?  I mean, if a post includes one picture, a member can clicks on “favourite/like” and that like should be shown as “like” in the picture in the lightbox as well. I mean having a connection between post and picture like. Similar to the comment, now when I comment on the post, the same comment appears in the picture lighbox

3) Is it possible to add a “Share” button in the post?

Thanks a lot and best regards