Guidelines on Top (in Front of Contours)

I would like to see the guidelines appear on top of the glyph

Meanwhile, you can disable “Fill Outline.”

Disable Fill works well. Just remember you have to “grab” the guideline outside the glyph to move it.

FontCreator 11.0 has a new option for Fill transparency. This allows the guidelines, points, connection lines, and CFF Postscript curve’s handles to be clearly visible without disabling the fill entirely.
Fill Transparency 5 percent.png