Placing GameObjects in a circle in scene view

I'm looking to do something similar to what is shown and solve in here: http://answers.unity3d.com/questions/1012503/left-and-right-player-movements-restricted-to-a-ci.html

However, I would like place platforms around the GameObject that is at the center (rather than having something akin to the large plane in the link). Is there a way to accuratly place said platforms without switching to Play mode to get transform locations, then moving back to scene view to make the change?

I saw that the PlayModePersist asset might help ease that process some, but I'm hoping there is another route. It looks like if I wanted to place the objects on play I could insert a script and spawn the GameObjects in the proper locations, but I rather have them there from the start.

I'm looking to produce something similar to the image included, but with accurate placement.