Hi Dmitry,

Subclass from form A then go into the class browser, load form b and change the parent to the new subclass using the redefine button.

>I have the following situation:
>
>Form Class C ->inherits from Form Class B -> inherits from Form Class A.
>
>I decided that I want to create a class between Class A and B (let's call it Class D). Form Call D will inherit from Form Class A. My question is, how do I modify my Form Class B to indicate that it should inherit from Form Class D and not Form Class A?
>
>Also, will 4 "tiers" of class inheritance be too much?
>
>Thank you in advance for any suggestions.