Adding value to a database or dataframe

Hi Guys, I’m developing a Dash Web App and I’m trying to create a button where I can click and add new values;

For instance, I have a list with X number of projects, and if I click in “add project” this will be updated to the options list.

Example of the app:

For instance, I want to add name, starting_date, final_date and a specific region and insert it to a database.

I want to build it using something like a Modal or a Collapse button.

I’m a little lost in how to exactly do it, can someone help me with some reference or giving some path to conclude this mission?

Thank you very much in advance, I will be very grateful if someone can help me.