as dCore is even more of a kit than Core, we have:
1. loadsce
When used by itself it presents a menu of available, and current;ly unloaded sces.
So in a sense it provides a CLI "ondemand".
2. ondemand
The ondemand CLI code is still there. Its use from the command line is as follows:
ondemand -l
Will list all sces on the system.
ondemand -c
Will display current on demand sces.
ondemand firefox
Will create the firefox ondemand item and its menu item will be available with supported window managers.
And would be shown with ondemand -c
ondemand -r firefox
Will remove the firefox ondemand item and the menu item will no longer display.
ondemand -e firefox.sce will attempt to run the ondemand item, if a single executable is specified .by freedesktop item.
These ondemand flags are and have been available with native Core since the introduction of ondemand.