When setting up a task in K2 Five, you can either turn on the notification or turn it off. It would be useful to allow you to use a variable/field to specify whether to send the notification or not.

We have a setup for user preferences across our custom applications where users can choose whether to receive emails from the application or not. We need to be able to apply this to our K2 workflows as well - such that if user "A" chooses to receive emails, we can set the notification to be sent, and if user "B" chooses not to receive emails, er can set the notification to not be sent.

Also, we would like to be able to change the "To" filed if needed.