Yes, it's a new feature in FS9 Use the TNG switch; e.g.,
AC#1,GBJWG,89%,24hr,IFR, 08:00:00,
TNG10:00:00,070,F,0001,EGSS,12:00:00,
TNG14:00:00,080,F,0002,EGSS
For complete instructions read the TTools manual and visit John Goodwin's site
http://www.john-goodwin.pwp.blueyonder.co.uk/page4frame.htmlbill