How to modify scene while play mode is on?

Hi guys basically waht the title says, I’d like to move around lights and objects in real time, any idea how to do this? Thanks

You can, but after it stops, it will always revert.

Hi guys, yes its exactly what i mean like you guys said. I’d like to modify but I don’t want it to revert!

Its weird because editing shaders/textures doesnt revert but other stuff does. Any idea? Thanks!