Use a sharepoint list to update /populate in a sharepoint library properties

Is there a way to update / populate SharePoint library's properties from a sharepoint list?

I have a List A and I setup a workflow to generate  a word  document when a new item created in List A.  The generated word document is stored in a document library B.  Now I wish to update all the columns/ fields from List A to Library B properties.  However, the action "Office 365 update item list" won't allow to do it, is there a way to populate fields from SharePoint list to library properties.  Please help.