I can modify Workflow approval form to bring what ever the look and feel,
fields I want and I'm able to do this.
Here I've 2 queries.

I've 2 fields. I want the second fields to turn in to Editable field only
if 1st field set to True (I'm mapping Boolean type attribute in 1st

2nd query is when I set True to field field I want to capture at what
time the field set to True.

Could you pls help me to do this in Approval form.