3) The choice to select which extension to share is present in the JMS Template rule (sharing tabs).
If you don't see any other extension for the sharing, that means that you don't have more.
You can go also in the JMS Tools menu and in the top right "help" button, you have the list of extension defined in JMS.
You can go directly on the page here.
www.jms2win.com/en/list-of-extensions?vi...id=269&Itemid=53
You have columns that tells you what can be shared per joomla version.
So check the list of extension and if it marks as not shared, this means that no body request its sharing or that the sharing is not possible.
If you see an extension that was marked as shared in a older joomla version and that you want that we redo the checking for a more recent version of joomla, send us the package in attachment of an email and specify that you want a review for sharing and for which joomla version. If this is possible, we will add the definition in JMS.
Concerning the VIEW, we don't have tool that build that and we don't know if other extension would do that.
If you want to do that manually, see the MySQL reference manual for the syntax.
What we can do is create a specific plugin - just for you - that allows you creating such kind of specific sharing rule via an XML file.
We do that with 1h of support that you can order at
www.jms2win.com/en/joomla-multisite?page...35&category_id=1
In this case, you will be able to define your own extensions and own sharing rules that will appear in the JMS Template (sharing tabs).