Select Landing Page Option won't work for PayPal Button

I went to "RESTRICTED OPTIONS', and added many pages, with their id's according to the steps instructed.
But when I go to the generate Paypal button for that specific page, the specific post/page doesn't appear for me to generate a button for the landing page option. So I am unable to generate a button.
Any advice on how I can correct the issue, or what could be the problem.
I used post/page id's & I even tried "All" for the restricted page options, but nothing shows, so I am unable to generate a paypal button for a protected post/page. All I want is a PayPal button! help!
But when I go to the generate Paypal button for that specific page, the specific post/page doesn't appear for me to generate a button for the landing page option. So I am unable to generate a button.
Any advice on how I can correct the issue, or what could be the problem.
I used post/page id's & I even tried "All" for the restricted page options, but nothing shows, so I am unable to generate a paypal button for a protected post/page. All I want is a PayPal button! help!