together. The three cases are:
Adding a virtual terminal (can take -t/-e to configure)
Deleting a virtual terminal (can take -F to force)
Adding or removing a keyboard or multiplexor (can take neither of the above,
and the index is optional)
.Sh "SEE ALSO"
to:
.Sh SEE ALSO
The doc macros check for the latter (actually just for 'SEE' as the first
argument to .Sh) to set the section header SEE ALSO flag, which modifies
some behaviour (e.g. references done with .Rs/.Re).