Is there an option to set multiple event reminders for a single event in the calendar? If i set up or edit an event using my phone app I can choose to have multiple remiders for the same event (e.g. set a remider to 30 mins before the event and 24 hours before), and Thunderbird remembers and reminds me of both (altough only showing one of them when looking at the event in the calendar). However i haven't found any option within Thunderbird to set multiple event reminders, I also looked for extensions for this functionality but haven't found any that appear to address this.