gEDA-user: PCB action proc 'setthermal' not found.

[Karel Kulhavy]

GTK PCB Command Entry integrated help:

togglethermal(target)
setthermal(target)
clearthermal(target)
        target = {object | selectedpins | selectedvias | selected}
                Toggle, set or clear a thermal (on the current layer) to
                pins or vias.

I entered:
setthermal(selectedpins)

and error message resulted:
Warning: action proc 'setthermal' not found.

The same is for clearthermal.

CL<