I guess it must be an Alibre Design Expert feature, since I don't have those "Sketch Options" available (or I don't know how to expand it beyond what's seen in this screenshot)
Sorry, I didn't see that you are using Atom.
Try checking the View menu to see if you have their visibility toggle there. You may need to hold the Alt key to turn menus on or check in the System Options to display them.
There is no menu bar available in Atom3D.
You may have to re-set the user profile to regain constraint symbol visibility - use link on Utilities Tab of Home Window.