How to clear few DFF attribute value using form personalization?

Hi All,

I have a requirement, for one of our client want clear few fields of dff by clicking it from tools menu, I have add form personalization, but it didn't worked.

When i click on tools menu still it is showing old values in DFF. it will not getting cleared.

Could you please help me on this.

1) Trigger Even

2) Menu Lable Setting up

3) Trigger Even--> calling above registered menu

4) Action --> Passing null value to Dff attribute.