Access this tool from the Objects palette, or from a custom palette or custom menu that you have configured with the Transmogrify tool.

This button provides an interface to ToolBook's utility to convert between fields, buttons, and recordfields. To invoke it, you need to be at author and select a field, button, or recordfield. Then click this button. It can also be accessed by going to the Tools menu - Convert Object or by pressing Ctrl+Shift+T.