Thanks! So, do it from the UI.
The author would have the option to dynamically add or remove sections from the form. For example, upon creating the container, the author decided that only 8 sections were needed, then realised afterwards that it only requires 7 sections, therefore had to remove or decrease the number of sections . This is what I meant by removing a section. Sorry, if I am not explaining that well. Let me know if it makes sense.
Regards,
Alvin