Widgets page

Hi,
On the widgets page, I would like to list the PPS in alpha order. Is that possible?
The following shows the Widget page with the Disable accessibility mode on
http://www.joelestingi.com/wp-admin/widgets.php?widgets-access=on
The following shows the Widget page with the Enable accessibility mode off
http://www.joelestingi.com/wp-admin/widgets.php?widgets-access=off

I think some of the widgets are inactive, e.g., PPS-jean-and-joe-wedding. How do I remove them from the list?

I added the plugin, Remove Inactive Widgets by Benjamin Sterling. It is shown on the page which states “Press the following button will remove all of these inactive widgets, Remove inactive widgets”. Not sure if I am using it correctly.

Thanks for your help.
Joe