Sculpting symmetry line indicator

I’m not sure if it’s just not there, or I’m just not looking hard enough. If it’s not there, I think although it’s not all that big of a deal, I find that it would be a great addition to have a better visual guide to remove a bit of guessing work when it comes to the exact symmetry point when sculpting.
Could also have settings to change the guide line opacity also or to turn it on or off for those who want or don’t want it.

(The visual line through the center of the model is what I am referring too)

This example model was made in Sculptris


I was thinking about this the other day. Maybe since we got overlays, we will get this in the future.