Disable Calendar event email notification by default

[vajtsz]

I would like to create a lot of calendar events, but I don't like to send email notification to the attendees. (the calendar is Public, and they can open it when thay want to...)

I can check out this in the "New calendar event" window , but it's checked on by default.

How can I unchecked it globally by default ?

Can I find it simple in the code, or some other solution ?

Tx for any help.