Hi NoMoreNoLess
I'm afraid that howto is out of date. I suggest you leave it set to OnBoot for now until you
become more familiar with TCL. You can easily change apps to OnDemand later from
the control panel. To the right of the Go button on AppBrowser the field should read
/mnt/sda1/tce/optional. Replace sda1 with the drive you want to save your apps on.
TCL will search for /tce/optional directory on any drive it finds and mount your apps
automatically when it boots. Don't forget to click the set button if you change the TCE: field.
[Edited for clarity]