Use the outline view, that properties window is a generic eclipse window and not related to class properties.

This feature has not yet been implemented but planned for the next release.

The mechanism is broadly similar to that which is used by Studio. When you invoke the Add-Ins menu item, Atelier issues this query by doing a post to with this body

{"query": "call %CSP.StudioTemplateMgr_Templates('addin')"}

This returns the JSON which enumerates those templates of type 'addin' which are available.

If you create a user template then the menu item should show up for your custom template. 

(see documentation /csp/docbook/DocBook.UI.Page.cls?KEY=GSTD_Templates

/csp/docbook/DocBook.UI.Page.cls?KEY=GSTD_Templates, section 'Making Your Own Studio Templates')

We hear you loud and clear and apologize, but unfortunately we don't have a good way to track that at the moment as the beta builds are being provided on an adhoc basis. When we release, the stable channel will be tracked rigorously and release notes will accompany incremental upgrades. For now we crave your indulgence.

Not currently. Basic authentication over http ( eventually ssl) is our initial offering. Other methods will be evaluated according to need/demand.