ability to share specific field/specific value in multifield

Have used many sharing plugins and extensions from the JED but none of them have the ability to predetermine which part of the article should be displayed in the share. I appreciated the ability provided in the flexicontent to predetermine which field should be shared and to what extent - by limiting the number of characters that can be displayed.
I would like to propose and enhancement or a plugin per say which could be attached to the specific field and then would share only that specific field and not the article as a whole or just the summary text. The idea is to have the share buttons where ever possible and not just at the end of the article. This feature not only determines the position of the share buttons but also the content that goes in along with the share button by grouping the share button field with the specific field or the specific value in a multifield!

Its interesting but realy specific asking ... maybe you can ask on commercial forum in FLEXIcontent