Hi Praveen,

You can use two properties for each i.e. total 6 for Old Password, New Password and Confirm Password. Add all the 6 properties in the section. 3 of them will be of Text type and others will be of Password type. In General tab, use expression in visibility such that .pySelected=true for text properties and .pySelected =false for password properties. In Action tab, create an action set such that event is Change and in action use Set Value. Under set value, add the property as OldPwd2(Password) and value as OldPwd1(Text). This will be performed on OldPwd1(Text) field. Similarly for OldPwd2(Password) field, in Action tab, create an action set such that event is Change and in action use Set Value. Under set value, add the property as OldPwd1(Text) and value as OldPwd2(Passowrd). This is being performed such that whenever there is a change in one of the property such as Text for Old Password, the same will be reflected and synced in Password property for Old Password.

The same can be performed for other two values i.e. New Password and Confirm password. Make sure to use two different properties for each where one will be of Text and other will be of Password. So finally, when the checkbox will not be checked, it will display only 3  fields on screen of Text type and if unchecked, it will display only 3 fields on the screen of Password type.

Hope this helps for your requirement.