How to show all WebPart Including Hidden WebPart in Web Part Page Maintenance in Sharepoint 2010

When I edit a Web Part page layout, i accidently remove those webpart from the page. (here i did not delete the webpart by selecting the Delete WebPart in the chrome Menu)

then i try recreate a new identical webpart, i realize that the title of the webpart had been automatically
change to My Web Part Title[2], the change was triggered by the system, since the previous web part actually was hidden in the page after i decide it from the page.

in Sharpeoint 2007, we can retrieve those hidden WebPart by following these steps

1. from Site Actions Dropdown menu select Edit Page.
2. Click on Add a Web Part
3. Click Advanced Web Part gallery and options
4. Click on Closed Web Parts
5. Drag closed web part onto the page.
6. Now you can closed the webpart you do not need it any more.

However in Sharepoint 2010, we can not find  "Advanced Web Part gallery and options" in the toolbar ribbon, actually all the webpart had been stored in the web part maintenance page.

the link to web part maintenance page should looks like this

http://MySite/MySubsite/MyPage.aspx?contents=1



then we can modify the status of each webpart.