Default value for multiple checkboxes - Custom Thread Fields

[Shade]

Hi ZingaBurga,
I'm trying to include a list of values in my postbit template, generated with a Custom Thread Field Input in newthread.

My goal is to select multiple values within checkboxes, and display in showthread both selected AND unselected values. Is this possible? I didn't find any kind of solution to this: I continue getting displayed only selected values, while I'd like to see unselected ones too. Sorry for my bad english, I'm italian: if you didn't understood something, please let me know.

THank you for your support,
Shade