Stories of this nature are the purview of our professional staff writers and are usually developed and written in-house. Star Trek has a staff of technical experts who take care of these details in-house. If you are not familiar with standard television script format, buy yourself a book on script writing or find a copy of an actual script. Star Trek spec scripts need to be 55 to 65 pages in length. A common rule of thumb says 1 script page equals approximately 1 minute on the television screen.
Script timing is a very accurate science.
Please do not apply your own theory. There is no limit on the number of scripts an agent may submit for you. Do not send computer disks. One hard copy of your script will suffice. Do not use fancy binders or plastic-covered pages.