Reminders for an entire ical synced calendar's events?

Checklist

[X] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
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[X] I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
[X] This issue contains only one feature request.
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Feature description

as it exists in google calendar, when you sync an ical you can add reminders for every event that is made by that calendar, so basically, as you can manage synced calendars, you can also add reminders for every event that comes from it

Why do you want this feature?

this is pretty useful when the synced calendar is not very well made; i'll use my actual situation as an example: my university has this virtual classroom platform that tbh is better than expected, but the calendar only marks when an event/task finishes and doesn't sync with the proper duration of said event/task e.g. if i have a homework for tomorrow at 9h00, that's the event, it doesn't say when it opens. I don't really mind that they don't tell me when the event starts because that way i need to search for that and it's harder to forget, but i do need the reminders 4 hours before every event to anticipate them in case i forget about them

Additional information

this is how the feature looks in google calendar, maybe yall can use it as inspo; it also gives you the option for mail notis or just push notis like everything else. Thank yall for your time kind people <333

EDIT: btw horas means hours in english, it didn't translate well :/

FossifyOrg / Calendar