Hi Ivan,
Greetings from Syncfusion support.
We have validated your reported query “I disable quick info with this conf is not possible to initiate create or edit existing event on mobile view” at our end. You can add and edit an event with the help of an editor window or public method available on Schedule for mobile mode. The editor window is opened from the quick info popups. If you disable quick info popup, You are not able to add or edit an event through the editor window. So, you need to set showQuickInfo property set to true to perform add and edit action through the editor window, and also you can perform add and edit action with the help of public methods of Schedule.
Kindly refer to the below links and get back to us If you would require further assistance.
Regards,
Ravikumar Venkatesan