EXTENSIONS: How to build an extension class being child of another class

Discuss
1

I have 3 classes that inherit 90% of code from a base class that implemnets some text parsing state machine.
I’m searching for easy/proper way to expose these 3 classes as extensions to my project(s) using NIOTRON extension IDE.
regards

2

Niotron Extension IDE does not support multiple classes at the moment.

3

You might use FAST-CLI to build your extensions. It’s compatible with Android, Windows, Linux and MacOS.