Improve dropdown to associate items to ticket

Hi,

Currently, for associate items to a ticket, we can only do it one by one and we must click on add button for each one.

It will be awesome to add multiple items at once, and have a temporary field to list all items to add and click only one time to the add button.

Like this ?

https://www.npmjs.com/package/bootstrap-select-v4

Sorry for my english
Thx