Among the formats listed in the drop-down box of the View Source window
(although only Default and LyXHTML work), LyX itself is missing i.e. LyX
in the form of
\begin_layout Standard
...
\end_layout
etc.
At present I can look at a LyX file in a text editor to examine the
format, but surely the natural place is the View Source window? For
someone writing a converter to or from LyX format, this would be of
great assistance.
(I'm aware the drop-down box is labelled "Output format:" but given that
only two of the formats have any effect, that seems a misnomer. In fact
I would expect Default to be LyX's native format, instead of LaTeX as at
present, and LaTeX to be explicitly mentioned in the list.)
Andrew