Edit/Edit Colors/ Convert to CMYK via applecript

Question

Cant seem to figure this one out.
In Adobe CC, I am trying to convert every path item of the current document to CMYK using applecript or javascript.
The equivalent to Edit/Edit Colors/ Convert to CMYK.
Currently I am using an action but I try to stay away from actions as much as possible.
Does anyone know how this could be done via applecript, javascript or whatever else?

Answer 1

Right, I tried this method already but it does not show the dialog box in Adobe Illustrator CC v18. only previous versions.
Our group all use different versions.  I may just switch to an installer script thats adds the action to Illustrators "Default_Actions.aia"  file since its text based.
Heres what I'm using now which  is working but I don't like all the hoops it has to jump.
The action simply writes a new doc to a dummy file on a server & the when script doesn't see then dummy file, it writes, loads the action & deletes the dummy file.
Then on the next run, the action will write the dummy file for the script to see & skip the loading of a duplicate action. 
And if I change the action, I simply change the name of the action file & dummy file.
property ACTSET : "Set 1"
property actbname : "Action 1" --- writes teh PTDF file, then run rest of action
property PTDF : POSIX file "/Volumes/artserver/1_ASI/spotcheck.ai" as string
property the_file : PTDF & ACTSET & ".aia" as string
property the_file2 : POSIX path of PTDF & ACTSET & ".aia" as string
property spotcheck : {}
tell application "Adobe Illustrator"
  set spotcheck to ""
  do javascript "app.doScript ('" & actbname & "', '" & ACTSET & "');"
  try
  tell application "Finder" to set spotcheck to file PTDF as string
  end try
  if spotcheck = {} then
  my addaction() --- saves action text to temporary items for the load
  do javascript "app.loadAction (new File('" & the_file2 & "'));"
  do javascript "app.doScript ('" & actbname & "', '" & ACTSET & "');"
  tell application "Finder" to move file the_file to trash
  end if
  tell application "Finder" to move file PTDF to trash
end tell