Create a reminder for a group/all privilege users - is it possible?

Hi,

I was wondering if there is a way to create a reminder for a group.
Currently the drop down list of a reminder owner is single-select.
Is there a way to change it to multi-select? Or add groups into the
list? Maybe some way to create a reminder to all privilege users?

This will be really useful when all staff need to be notified about an
emergency situation and all attention must be focused on a single
ticket (i.e. accidents, terrorist attack, etc’).

Thanks,
Roy.