Feature request: multiple choices with checkboxes

Hi,
It would be very convenient to let the type checkbox get the attribute options just like select and then store multiple values separated with comma.

To make the feature more flexible, an additional parameter could allow to choose the separator.

Anyway, the plugin works great, I’ll implement it in all my plugins very soon.

Bastien

https://wordpress.org/plugins/shortcode-ui/