An option to adjust the time scale in the daily calendar view
Literally no other calendar app allows you to adjust the timescale in your daily view to 15 minute intervals.
I often set appointments or tasks in 15 minute intervals. The ability to change the time scale from 1 hour to 15 minutes would be AMAZING!
Making it custom in general would be awesome, being able to adjust the time to something other than an hour would be awesome.

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Jaap commented
agree, would be great to be able in the daily and weekly view to set different timescales. Is this on the developer agenda?
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Aravinth commented
I go a level deep & block slots for small duration as 5 mins, to schedule certain shorter events.
Hence having the ability to adjust the timescale similar to Outlook Mail (from O365) in ranges of 1 hr, 30 min, 15 min, 10 min, 6 min & 5 min (A even a custom option, if possible) would be really useful