This Osiris extension for Visual Studio 2015 lets you easily associate a recent work item to your current pending changes without looking around for it. After you have installed the extension, you will see a new section in the Pending Changes page called Recently Associated Work Item that lists the work items (max 5) that you have associated with the last 20 changesets in the current team project.
To add a work item to the current pending changes, just right click on it and select Add. You can also open the work item directly from this list by either selected Open from the context menu or by double click on it.
The Osiris AssociateRecentWorkItems extension is a new version of the Inmeta AssociateRecentWorkItems extension that was developed by Inmeta.
This new version supports Visual Studio 2015 and is open sourced at GitHub (see link at top right)