Currently, Work license holders only have View access to calendars created by Plan users. Allowing Contribute access to calendars for Work license holders would allow them to add ad-hoc items to a calendar, like travel, or non-time-off related out of office info. Currently, shared Google calendars are used by our teams to do this, but this is duplicative with some of the other project work reflected in the same calendar which can be automated using the Workfront calendar.