PML Customisation
User Guide
Forms : Form Members : Form Variables: PML Variables within a Form
It is often convenient to store additional information on a form which will not be displayed to you. This is achieved by defining form variables.
These are variables which can be any of the PML data types, including ARRAYS and OBJECTS. These variables have the same lifetime as the form and are deleted when the form itself is killed.
In a callback function you can use !this. to represent 'this form':
