Filtering .ics calendar-subscriptions (e.g. hide all-day events)

[someromans]

Is your feature request related to a problem? Please describe.

I am subscribed to a company calendar, which is great, but includes a number of all-day events for projects that are ongoing. These events don't add any insight, so I would like to filter them out.

Describe the solution you'd like

In my case, a potential filter could target event categories or the all-day toggle. More generally, I would be good to be able to filter different properties of events.

This could be done in the settings for the individual subscription, either by selecting individual properties and in/excluding certain keywords, or through a regex.

Describe alternatives you've considered

I have in the past used icalfilter.com/ but it broke for me. Other sites offering this type of filtering only allow name and description as a filter. Also, I would really like to not go through one random website anymore.

[GVodyanov]

Hey! Thanks for your request, this sounds like something that could work. If you feel like making a PR or a separate app for this, we are here to help.