Adding "Done with my part" to the My Work widget

[#1]

This was submitted by one of our users:

Description - If multiple people are assigned to any single task, you can't mark "Done with my part" from the Work widget on the WF homepage. It would be good to be able to do this.

Why is this feature important to you - Keeps from having to shift between screens

How would you like the feature to work - Description describes the feature.