Load additional files :also [<filename> ...]
The :also command can be used to load module files, without
removing any that have previously been loaded. (However, if any of
the previously
modules have been modified since they were last read, then they
will be reloaded automatically before the additional files are read.)
If successful, a command of the form :load f1 .. fn is
equivalent to the sequence of commands:
:load
:also f1
.
.
:also fn
In particular, :also uses the same mechanisms
as :load to
search for modules.