First of all, ELOG has been designed having shift logbooks in mind, so it probably will never be a perfect trouble ticket system. Nevertheless, there are some options which can help in that respect:

• Use attributes Ticket and Status
• Preset Ticket with a running ticket number via
  
  Preset ticket = TCK-#####
  

  This will increment the 5-digit ticket number whenever you create a new ticket, but will not update it when you do a reply

• Use Status to determine the status of the whole trouble ticket chain (initial entry plus replies)

  Options Status = open, closed
  Preset Status = open

• Once a ticked chain is closed, do the following:

  • Go to the threaded list display
  • Click on Select
  • Select the trouble ticket chain
  • Click on Edit
  • Now change Status from "Open" to "Closed"

This will then modify the Status of the whole chain from "Open" to "Closed"