The (s)ave option saves the default options to a file called `splash.defaults' in the current directory which is read automatically upon the next invocation of splash . This file uses namelist formatting and may be edited manually prior to startup if so desired (this is quite useful for setting multiplots with many plots per page).
The (S)ave option writes both the defaults file and also saves the current plot limits to a file called `splash.limits' which is also read automatically at startup. If animation sequences have been set (see §??), this also saves the `splash.anim' file to disk.
Typing ``sa'' or ``Sa'' gives a ``save-as'' option, whereby the prefix of files saved by splash can be changed (e.g. using ``sa'' the defaults file can be renamed, whereas using ``Sa'' all files saved by splash are given a new prefix). The prefix to the configuration files which are written by splash can also be changed using the
-p option on the command line (the default is ``splash'', i.e., ``splash.defaults'', ``splash.limits'' etc).
The (h)elp option at the moment does nothing particularly useful apart from tell you about menu shortcuts (see §??). It seemed like a good idea at the time…
Menu options which normally require two keystrokes (e.g. x menu, option 1) can be shortcut to by simply typing the letter and number together at the main menu prompt (so e.g. ``x1'' for x menu, option 1, ``r2'' for render menu, option 2, etc.). This can be quite useful if you are playing around with one particular option a lot.
(q)uit, unsurprisingly, quits. Typing a number greater than the number of data columns also exits the program (e.g. I often simply type 99 to exit).