I believe the first three you have cited are perfectly acceptable:
- System > Preferences > Keyboard > Layouts > Apply System-Wide
- System → Preferences → Keyboard → Layouts → Apply System-Wide
- System --> Preferences --> Keyboard --> Layouts --> Apply System-Wide
Even add
- System -> Preferences -> Keyboard -> Layouts -> Apply System-Wide
We can ask to a characterhave character set to be added based to post formatting (IE have -> actually create →) In the end slashes and pipes are really reserved for use in commands on the command line (/
for paths and |
for piping). Embedding text in the directions where you draw out the actual path by instructing them to do this next only dilutes the instructions more IMO.