Been reading here for a few days and haven’t seen this tip come out yet so figured I would post it.
When doing a jumping puzzle in the dark you don’t have to use a torch to see where you need to go. You can use your ground targeting AOE Circle to map it out for you. Furthermore you can hold down the right mouse button and it will remain in place for you to judge the running space you have when attempting the jump.
This does require you to turn off the ground targeting assist in options if you have it enabled like me :P
Happy Jumping!
-Shakar