How do I change the desktop change intervals in Windows 10?

I have about 26 different background images that used to cycle randomly every 5 mins. After upgrading to windows 10, I can still right click on the desktop and choose NEXT DESKTOP IMAGE, but the automatic and random change seems to be gone. When i go to display options, I dont see anything to choose the time interval between changes like I used to in Windows 7. Anyone know if and where those setting are located now?
Thanks

Lhlsdjg_5672015-08-27T16:37:49Z

From your settings

Scott2015-08-27T14:18:33Z

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