There are three routes for an add-on to reach a WordPress site running FW Real Estate. The plugin drives none of them — it reads add-ons from wherever they are and never downloads or writes one.
wp-content/uploads/fwre/addons/. Nothing checks it for updates.If the same add-on appears in more than one place, the copy that is shipped takes priority: the pack first, then the bundled set, and a hand-placed copy last. A file left in the uploads folder can never shadow one the pack just delivered.
The pack is a WordPress plugin and appears on the Plugins screen. The individual add-ons it carries are not plugins and do not appear there. Deactivating the pack removes its add-ons from the site immediately — that is what deactivating a WordPress plugin should do. The data those add-ons saved stays in the database, so reinstalling the pack brings every feature back exactly as it was.
A lapsed subscription switches nothing off. An installed pack keeps working; what lapses is updates and support. Nothing in FW Real Estate checks entitlement while the site runs.
Connecting the site to your fastw3b.com account pairs this domain with your subscription. The FW Real Estate admin header and the red This website is not verified banner both show a Connect button. Clicking it opens your fastw3b.com client area, which registers the site and sends you straight back with the key already applied — there is nothing to copy and no key to paste.
After a successful connection the header shows your account, the verified domain, the subscription state and the support state.
Connecting does not fetch or install anything. What it unlocks is:
A site that has never been connected makes no outbound request at all. Everything already installed goes on working.
FW Real Estate → Add-ons is where add-ons are switched on and off. That is the only action on a card — there is no install step and no way to remove an add-on from this screen. What the site has, it has by one of the three routes above.

Add-ons are organised into three groups:
A disabled add-on is genuinely absent: its fields leave the property form, its output leaves the front end, and its columns leave the CSV export. Its stored data stays in the database, so enabling the add-on again restores everything as it was.
On a connected site the screen also lists add-ons the site does not currently have, showing which subscription carries each one.