The second story entailed Bill Shatner, Leonard Nimoy, and DeForest Kelley
accidently beaming up to the *real* Enterprise from the sound stage at
Paramount, initially having fun pretending to be really whom they looked like
but then having to deal with a real emergency and a command decision without
having the experiance and know-how of those whose places they had taken.
The first story was apparently exactly the converse: Kirk, Spock, and
McCoy accidently beaming down to the Paramount sound stage.
I hope that these encapsulations are of aid in tracking this short story down.
Thanks for your time and interest.
--
The Phoenix
(Neither Bright, Dark, nor Young)
---"A man should live forever...or die trying."
---"There is no substitute for good manners...except fast reflexes."