Editable grid - date and color pickers - how to empty the value?

Webix JS
1

In example below there is no way to empty the value date and color picker fields.
http://docs.webix.com/samples/80_docs/editors.html

What is the best way to implement an “empty value” option to let user reset the date/color?

2

Hello,

We plan to add such a configuration option in one of next updates.

3

Thanks