Hi Mary,
On 22 May 2015 at 17:07:39, MaryJane (mgpardi@exis.it(mailto:mgpardi@exis.it)) wrote:
  hi all!
 I've some questions:
 firs, how can I create a subfodler in xwiki? (a tree folder) 
You cannot, see 
http://platform.xwiki.org/xwiki/bin/view/Features/Spaces
Note that we’re planning to implement Nested Spaces in a hopefully close future...
  second, on my dashboard I see this warning : '
Unknown macro: spaces
 The "spaces" macro is not in the list of registered macros..... ' why??
It probably means you’re missing the Main.Spaces page or that this pages has been
modified.
  the last : how can I modify the name of the dashboard?
Navigate to the Dashboard page and edit in WYSIWYG mode or Wiki mode (by default when you
press edit you edit in Form (aka inline) mode.
See 
http://platform.xwiki.org/xwiki/bin/view/Features/PageEditing#HAdvancedMode
  can anyone help me? 
Hope it helps,
Thanks
-Vincent
  thanks in advance
 Mary