Currently, recurring events cannot be edited, but really, the only ambiguous and unpleasant edits are date/time/frequency edits. Recurring events should be editable, and only the following fields can be edited:
- title
- description
- invitee list
- visibility
- subscribers
- icon
The following should never be editable on recurring events:
- all day flag
- recurring flag
- recurrence frequency
- recurrence end (up for debate, but leaning towards no)
- start and end times
The fields that are not editable should have messaging that communicates the reason they are disabled/missing.