Unfortunately it doesn’t possible in current version (as for now, you can define access rules for user groups, but not for specific users ), we are plan to provide user-specific calendars as part of next version.
We plan to add “independent calendars” feature, when scheduler can work in existing mode, or show separate calendars for each user ( common settings, but separate data for each user ) - will it work in your use-case, or you think about more complex scenario, when still events of all users are visible, but only owned events are editable ?
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