A calendar view for open actions is a great idea! As a help desk user, having open actions displayed in calendar format would give me an at-a-glance view of upcoming patching deadlines and status.
Some thoughts on how this could be implemented:
The calendar could display each action target with its due date and a status indicator (in progress, pending approval, etc).
Color coding targets by computer group would make it easy to filter and see which patches are upcoming for specific groups.
Click on a calendar event to see the open action details - description, applicability, number of targets, etc.
Have an option to display closed actions too, maybe in a separate view, to see what actions were completed on which days.
Integrate with email alerts so help desk is notified of upcoming action due dates and status changes.
I imagine this calendar view would help the help desk quickly visualize the patch schedule, identify any problem groups missing patches, and proactively respond when actions are close to expiration. It could also improve visibility for anyone monitoring patch compliance across computer groups.
Let me know if anyone has already created something like this or if you need any help mocking it up! I think it could be a really useful addition to the BigFix console.