Render Lighting effects

[AmyL2023]

I'm new to PS so after watching some tutorials regarding Render/Lighting Effects... my layout isn't the same i.e., I don't see where I can actually move the lights on the photo, I only see the sliders to the right. Where can I access this and also how do I reset it back. Thanks in advance! 

[c.pfaffenbichler]

Have you seen this thread? (check out the more recent posts) 

https://community.adobe.com/t5/photoshop-ecosystem-discussions/lighting-effects-not-showing-handles-...

[AmyL2023]

Thanks so much!