[CALIBRATE\]UV_SELECT [Key]
Select which UV data set will be used by commands UV_MAP, UV_RESTORE,
SHOW UV or WRITE UV. Key can be any of following:
DATA or UV_DATA to specify the UV data obtained by READ UV
MODEL or UV_MODEL to specify the UV data obtained by READ MODEL,
or computed by command MODEL
RESIDUAL or UV_RESIDUAL to specify the UV data computed by command
UV_FIT
No other UV related command is affected by UV_SELECT. They all work on
the UV_DATA dataset.