When two event reminders arise, the popup has 2 lines (and of course 3 lines if 3 reminders and so on).
At the bottom, there are only 2 buttons: one to postpone with selected delay all the elements and one to cancel all the reminders.
Is there a way (like Outlook has) to postpone one event for 5 minutes and the other for 1h?
I don’t think so. Maybe you could propose it as an idea to be considered for future versions. Though if eM Client notifications are eventually integrated with Windows 10 notifications, the functionality may change again.