17.16.7 Keywords:

VIEW recognizes the following keywords

   BEAM        Synthesized beam(s)
   CCT         Clean Cumulative Flux
   CLEAN, DIRTY, SKY   Usual sky maps
   NOISE       per channel noise
   PRIMARY     Primary beams

or any other 3-D SIC variable.

VIEW falls back to SHOW for un-recognized keywords, such as MOMENTS, COMPOSITE, UV, etc...