Feature Request: Expose a configurable subset of items to the cloud connector.

[Selaron]

In order to expose 4 Items to alexa via myopenhab.org, I configured the "openHAB cloud" plugin, added the desired 4 items to "published items" list.

I was surprised that API endpoint is giving public access to all my 300+ items which can be listed by
https://myopenhab.org/rest/items

If I switch the setting mode "Notifications and Remote Access" to "Notifications", the /rest-Api endpoint stops responding and alexa integration stops working, if a switch it back to "Notifications and Remote Access" all my items are accessible via myopenhab.org again.

My openHAB instance is running in local network and accessible locally or via VPN only. Having only the two options to either publish everything or nothing is a show stopper for me, therefore I need an option to tell the "openhab cloud" plugin which item to make available for the configured public cloud interface.
Even custom sitemaps, UIs, Pages etc. should be functional for that subset of items only when viewed on myopenhab.org, the local openhab instanc should be the party that enforce the access control.