Better definition of default values for Multiple Choice fields

The current interface for defining default values of Multiple Choice fields does not allow several operations, including:

* making all values selected by default (in case of multi-selection field)

* making no value selected by default after you've selected one

I think the Knack interface should use checkboxes instead of radio buttons for multi-selection fields, and it should add an extra radio button for "None selected" for single-selection fields.

I'm currently using JavaScript to perform these default selections.

YES! I need this too!

Alessandro, would you care to share the JavaScript to perform these default actions? Thanks!