So, now when you have created a Google Plus Page, how do you manage it. Here is how you can manage / edit your Google Plus Pages:

Managing Google+ Pages

Step 1: Use Google Plus as Page.

Click on the text "x Pages" (x=number of pages) to list the Pages you have created.

Click on the Page that you want to manage.

Now you are using Google Plus as page.

Step 2: Click on Setting button (on top-right corner) and then select "Google+ settings".

Here you can find variety of options to manage your Page.

Alternate Method

You can also follow this route to manage your page:

Step 1: Head over to this URL: https://plus.google.com/pages/manage

Step 2: It will list all the Pages that you own / manage.

Step 3: Click on "Settings" of the Page that you want to manage.