OK, not really a Windows issue specifically (though it might be I s'pose), but Gmail used to have the facility to create a calendar event out of an e-mail you'd received. Automatically, if it found identifiable date/time information in the e-mail itself, or manually, if it didn't - i.e. you could still add the e-mail to the calendar, but had to supply date & time info yourself, obviously.
I found this very useful. I attend webinars from time to time, in connection with certain hobbies and pastimes, and when the e-mail registration came through, I could simply stick it in the calendar, and set reminders to join the conference at the appropriate time. All the joining instructions would be there ready, in the calendar entry, because it would have attached the whole e-mail.
The option to create an event used to be on the "More" menu, when the e-mail was open.
So got an e-mail registration confirmation today, with joining instructions, went to stick it in the Gmail calendar - the option isn't there any more.
If I want to make a calendar event for it, it seems I have to painstakingly transcribe all the info by hand, now, and can't just stick the e-mail itself on the calendar.
Can't find anything on Google Help about the demise of this functionality, or whether it's still possible to do it another way. Was I the only person ever to use this?