How to add and remove items using the selection component

Greetings,
I was watching the Fall '24 Update Webinar and i was interested in adding the remove and add items feature as shown in the screenshot below. it is not mentioned in the tutorial definitions. i would like to get some help in understanding the logic. maybe a gh file or written down explanation so i can try to replicate.

Regards,
Mohamed G.

This example is not yet included in the tutorials because it is not properly documented, and contains some beta features which will be updated in the future.

Here is the file in case you want to have a look and ask your questions in this thread:

basic-cabinets.gh (120.1 KB)

What is important to noticed (and consists of the above mentioned beta features) is the “AppBuilder” direct text input component, which is used by the App Builder to send the state of the online application to Grasshopper. Without it, it would not be possible to create such iterative processes. Feel free to ask you questions below and my colleague @edsahergom (who created the file) can answer them.

Thank you so much. much appreciated. the file is organized and easy to understand.

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