Hi fabrizioleo,
> it is possible to save the MDX query of MDX Visual Designer
You can use Copy/Paste
1. Click "Show MDX" button.
2. Select query text by mouse
3. Press Ctrl_Ins (or Ctrl_C)
4. Goto any text editor (for example Notepad)
5. Press Shift_Ins (or Ctrl_V)
6. Save file in notepad
>adding a button to the toolbar
Create new class inherited from (or use in it) PivotMdxDesignerControl
and implement what you need.
Regards,
Anatoly