[news.eclipse.webtools] QuickFix in XML Editor

[xcoulon@xxxxxxxxx (Xavier Coulon)]

Hello,

I managed to generate custom Markers (of my own type) in a plugin based on 
the Eclipse XML Editor. It works fine, and given the content validation 
result, I get error or warning markers in the left margin that are bound 
into the 'problems' view.
Now, I'd like to provide some 'quick fix' as we can find in the Java 
Editor, but for now, I'm a bit stuck. 

First, I added an extension based on 'markerResolution' and it appears 
correctly - yet *ONLY* - in the problems view. I did not find how to get 
access to the 'Quick Fix' contextual menu in the editor's left column. 
Secondly,I noticed a 'quick assistant' that provides a 'surround with 
element' when I press 'Ctrl+1' as item I want to fix is selected in the 
editor.
Adding a 'org.e.wst.sse.ui.quickFixProcessor' targeting a 'problemType' 
that matches an attribute of the same name in my custom marker does not 
seem to work :-( BTW, this custom attribute that was also declared in the 
plugin.xml

Can you tell me what are the differences between 'quick fix' and 'quick 
assistant' (or is it just the same) ?
Is it possible to have quickfix in the XML Editor's left margin ?
Otherwise, how can I contribute to the 'quick assist' contextual menu ?

Thank you in advance
Regards,
Xavier