Basically, I have an eclipse plug-in which, among other things, adds three tabs to the Properties View, by using the extension points provided by eclipse (org.eclipse.ui.views.properties.tabbed.propertyContributor, org.eclipse.ui.views.properties.tabbed.propertyTabs and org.eclipse.ui.views.properties.tabbed.propertySections).
I am creating a plug-in to add a new tab (and some different properties) (see image).

Can you please give me some indications on how to do this, considering that there are no extension points offered by this plug-in for this. Is it possible to create a new tab by using the extension points provided by eclipse (mentioned above) in such a way that my tab appears under the three already added?
(I am pretty new in the plug-in area… all the tutorials I found showed how to create some tabs from scratch, where there is nothing added in the Properties View already).
Many thanks!
Here is the solution I found so far (I still need to explore it a bit more – I might be able to add some more details):