LaunchTaskX LLLL [D>=16]

Launches the MultiTrack task that starts at line LLLL with the task's J register set to the value in X and pops the register stack. The task address is entered into the task queue for later execution when the task queue is run using RunTasksForever or RunTasks.

See MultiTrack tutorial

NOTE: The new task will not run unless you have a RunTasks or RunTasksForever command.

Dialect exclusions: Not available in dialects before 16.