Is it possible to change "default" calendar?

Is it possible to change "default" calendar?

I now have the need to share a calendar that has been private, so I have made the changes and the other users can now access and edit. However, if it is possible we would like to set the accounts of those I've shared with so that the default calendar for creating or editing entries is my shared calendar and not their calendar that was created when they signed up for their accounts. In other words, when they click "Create Event" or click a date on the calendar, is it possible for the edits to go to my shared calendar by default rather than having to choose it in the drop-down box?

Thank you in advance for your help.