I'm trying to add a sub-menu under administration, for example:

Management:

• ......
• Content
• Structure
• ......
• My test (sub menu under administration)
• My view 1 (a view that I created)
• My view 2 (another view that I created)

Under structure-> menu, I see that I can create a new menu and add link to existing menues, but I cannot understand how can I add a sub menu to Management.
Note: I'm using Drupal 7.

I'm trying to add a sub-menu under administration, for example:

Management:

• ......
• Content
• Structure
• ......
• My test (sub menu under administration)
• My view 1 (a view that I created)
• My view 2 (another view that I created)

Under structure-> menu, I see that I can create a new menu and add link to existing menues, but I cannot understand how can I add a sub menu to Management.
Note: I'm using Drupal 7.

Edit: I added a link (My test) under management (Like in @Clive's answer) with path admin/test under My Test I created another link with path admin/test/form-view-test-3 and also gave that path to the view.

When I click on My menu I what to see a list of subcategories, in my case Some view. Instead Test 3 (The View) appears as overlay tab and I see the list of admin menus.