Assign User Points in existing website which already contains content Question specific to "User Points" module, backcopy of question from here due to no response: https://www.drupal.org/node/2492933

Drupal 7 - 

I have a website which is already running for more than 2 years. Many users have been adding content to it and now I have a requirement where I need to assign points to the user. I came across this great module but this does not let me assign values to the user based on the content they have already contributed, revisions already worked on and also the comments provided already.

I have tried to google and also checked the module thoroughly but there is no way to do what I want to achieve. Is there a way to achieve this?
I think User Points Contributed modules is your best alternative available today. I. e. submodule userpoints_retroactive. Excerpt from that project page:


  Award users points for their nodes, comments and votes that they have created so far, before userpoints was enabled on the site.


However, the port of this module to D7 still needs work. Maybe you can/want to somehow contriute to the finishing touch of that issue?

PS: there is also Berdir's Api documentation about this submodule ... (maybe that helps somehow).