Can you change Pinterest settings so that any image on the page can be "pinned" instead of one selected pin or not yet?

I know you allow users to upload icon sets however what if we can't design them in all those sizes? Or what if we want them just for ourselves? I am talking here mainly about doing this for the html (any website) version of the plugin and for the downloadable plugin as well. 

This plugin is awesome. The only issue i have is with mobile which will be a huge number of users. It covers the content and does not resize on mobile....making the site unusable for visitors from smart phones.

There is another post with shortcode to add to css to hide floating widget on smaller screens/mobile
@media all and (max-width: 995px) {
.shr_v{display:none}
}

It did not work when i tried it.

Is there a way to hide only the floating widget when viewing from mobile device?

When a user clicks the share twitter button it copies the entire URL instead of shortening it. Is there a way to make it shorten the post url using bit.ly  or something?

When readers hit the share button, it populates a picture that doesn't relate to article, also when I do the same it responds the same way.  I would like for it to use a current related picture.