However, if you’re not a programmer, this is probably not for you, and you’ll need to look for a ready made solution.
The interface you showed a screenshot is unfamiliar for me, and it’s certainly not part of Asterisk, as Asterisk has no GUI of it’s own, but many kinds of web based interfaces exists, built by 3rd parties.
Where I work, we’ve made our own interfaces for configuring and monitoring Asterisk, which our customers can use to change their configuration by themselves.
I do not, you generally need to ask about a products features using it’s own support channels. If someone here knows about something that will do what you need, they might decide to jump in with a suggestion, but hardly anyone here will search for a solution you can use, and point you to it, that’s all on you.
I believe that a version of FOP (If it’s flash operator panel) were included with Trixbox a while ago, but we’ve moved on from that almost 10 years ago, and I’ve not looked much into ready made solutions ever since.