For those of you who don't use wiring and show tick marks in your electrical plans...nevermind, sorry!
Tick marks are based upon external tick mark families. The stock families are found in this folder.
On the off chance you don't know what these are here's what they look like in use.
There is a separate category of family usage called Wire Tick Marks.
This means you can use a different tick mark than those supplied. Such as "the squiggle".
Or "the ground".
If you haven't noticed these options they are found under Settings menu > Electrical Settings > Wire.
Hope this "tickles" your fancy...