How do I use the Password mode?

The password mode
The password mode is a small property inside the Textbox element, which enables you to mask the data entered in it behind asterisk characters.
Following are the steps to work with the password mode:
1- Create a new blank form
2- drag a 2 textbox elements


3- Change one textbox label to "Name" and the other textbox label to "Phone".
When the textbox is selected go to 'Properties' panel > 'Element' tab > 'Settings' option > 'Basic' category > Label


4- Select the textbox you want to add the password mode to, in our case: Phone.
in 'Properties' panel > 'Form' tab > 'Settings' option > 'Advanced' category 
Turn on the "Password Mode" checkbox


4- Save the form
5 - Now test the form by publishing it as URL.
Enter your name in the first checkbox
when you enter your phone number you will see asterisks instead of digits.