New to NS. Can someone please explain the ! icon symbol, thanks.

[NSUser123]

I am new to NS, and I would like to allow a website to use scripting.
Effectively, I would like to add a website to a "whitelist".
I had a look at the user interface, and saw an exclamation symbol, like this: !
If I click on it, I then see this -- please see the google photos photo link, thanks:
https://photos.app.goo.gl/6HnRiBngsR35kcFGA
What does this mean please?
Does this mean that I have allowed the website to use scripts? (Which is what I want.)
I'm sorry, I'm new to NS, and I don't fully understand what the ! icon means, because it now has changed (see photo) to a circle with a line through it. Does that mean it is showing the current NS "status", or does that mean that in order to get that functionality, I need to press the button. (That's the bit that I am getting a bit confused about.)
Thanks a lot for any help/suggestions/comments.

[barbaz]

What does this mean please?
Does this mean that I have allowed the website to use scripts? (Which is what I want.)

Your screenshot looks like you clicked the "Disable restrictions for this tab" button. It completely turns off NoScript's script permissions for everything loaded in that tab - so all sites, including those you've set as Untrusted, would be allowed to run scripts.

it now has changed (see photo) to a circle with a line through it. Does that mean it is showing the current NS "status", or does that mean that in order to get that functionality, I need to press the button. (That's the bit that I am getting a bit confused about.)
Thanks a lot for any help/suggestions/comments.

If you click that you'll turn script permissions back on for the tab.

In either state, mouse over that icon should show a tooltip saying what it will do if you click it.

[NSUser123]

Thanks very much. I now realise that what I was describing was associated with a "gerenal" browsing tab, and not a specific website.
Is the best way to ask NS to avoid using script blocking for a certain website, to go to the NS Options page, and then go to the Per Site Permissions tab, and then type in a URL there?
(I see that in that list, there are two icons shown, one representing a closed padlock, and one representing an open padlock. what do they mean please? Thanks a lot.)

[barbaz]

Is the best way to ask NS to avoid using script blocking for a certain website,

You mean like what NoScript Classic called "Cascade top document's permissions to 3rd party scripts"? NoScript Webext doesn't have a way to do this.

(I see that in that list, there are two icons shown, one representing a closed padlock, and one representing an open padlock. what do they mean please? Thanks a lot.)

Green closed padlock = permission applies only when the site is loaded over HTTPS

Red open padlock = permission applies regardless of protocol