Variables in default text of long text box

Hello, I would like to be able to use variables in the default text of the long text box. For example I am creating an invite form for users to use. I want to include default text that inclues values they provided earlier in the form. Name, email, etc, but still give them an option to edit them. 

Here is an example: https://form.jotformeu.com/81696344960366

This is possible only in the Text field, example:

Let us know if you need more help.