How do I delete devices from my apple id?

Question

I want to manage my devices in my apple id.
Tried to follow this guide but I cant find the Manage devices to click on.
I use itunes 11.1.3
Removing an associated device or computer from an Apple ID
To remove a device or computer from your Apple ID:
Open iTunes.
Sign in to your Apple ID by choosing Store > Sign In from the iTunes menu.
Choose Store > View My Account from the iTunes menu.
From the Account Information screen, click Manage Devices.
Click the Remove button next to the device name you would like to unassociate.
Note: Removing a device from your Apple ID does not override the 90 day timer. The timer must complete 90 days from the day the device was associated before it can be associated to another Apple ID.
Where is the Manage Devices to click???

Answer 1

How/why do you want to remove them from your account ? e.g. if you are selling or giving a device away and want to unlink it from your account so that the new owner can register it to their's then you can do so via your support profile : https://supportprofile.apple.com/
A device or computer will only become associated to an account, and appear in the 'manage devices' section, if you use iTunes Match or automatic downloads on it, of if you redownload the account's past purchases on it (if you don't have any associated devices/computers then the section won't show). Have you done any of those ? You could try redownloading a past purchase on a device or computer and see if that section then shows with that computer/device listed (but if you do then it will become associated for a minimum of 90 days).
And for the hidden purchases, have you ever hidden any ? You could try hiding something and see if that section then shows : hiding and unhiding.