hi, i want to add extension inThunkable X, so is it possible. If yes, so how. pls help
It is not possible.
Like @skulamester said
The reason is Because Thunkable uses a different language than app Inventor, kodular or niotron use.
Wich is React Native instead of Java.
If you mis something ask it to be added here:
OR add a HTML file with your custom code and load it in a WebViewer.
In future please search the forum before spamming it by creating a topic with a question that has been answered multiple times.