Hello Jason,
If you want to do it via the listview click you can always use a OnClick microflow that sets the bool to true (or to the opposite of what it was if you want it as a toggle) and then refresh in client.
As for clicking on the textbox you can work it out with a js/jQuery onClick event, I've done something similar for clicks within a div. Happy to have a look for a snippet if you're having difficulty with it.
Hope this helps.
added idea to idea forum
https://community.mendix.com/link/ideas/1124