I’m building an application where the users would like to me add a keyword section when they enter a new record to allow them to search for records. I don’t want it to be free form text. I’d like it to be similar to how StackOverflow implements the “Tag” section when creating a new question. I want a user to start typing in the input box, and a valid list of keywords is displayed. The user would then select the keyword from that list. They then could remove a keyword by deselecting the chosen keyword. I would also want to limit the number of keywords they could enter. How can I accomplish this?