What I have so far: I show the content of a JSON in the options within a select, which with the help of the bootstrap-duallistbox shows it in the form of a Dual List with which you can add or remove certain selected options.
My problem: What fails is that when selecting an option and passing it to the next area it pulls all and not just one, I do not know what is due, I hope you can help me, I'll leave you the advance that I have HERE