In an IzPack installer I have various fields for taking User Inputs, some of these fields have default values wile some are left blank.

The problem that I am facing is, when a user puts in details in any of the fields and says Next and then come back to this panel using the Previous button, all the input fields values are restored back to their default states. How can I stop this from happening? I want to retain the values added by the users when they come back to the previous screens.

I am using IzPack V 4.1