If you are using Internet Explorer 7 or higher, you may receive a message when trying to use the Copy or Paste buttons in the PDshop Admin content editor, such as "Do you want to allow this webpage Access to your clipboard".  

If you click "Allow", the buttons will work.  If you click "Deny" than the buttons may stop working permanently until you restart your browser.  

This is a security feature built into your web browser, but there is a workaround to prevent this message.  See the article from Microsoft about how to fix this and allow PDshop's Admin the proper access

Here are the steps to allow Access:

In Control Panel, click Internet Options.  

Click the Security tab.

Under Select a Web content zone to specify its security settings, click the zone where you want to prevent Web sites from accessing your clipboard. Click Custom Level.

In the Scripting section, under Allow paste operations via script, click Prompt or Disable.

Click OK.