[Csnd-dev] expression with multiple outputs

nchnls = 2
0dbfs = 1

instr 1
   sound:a = pinkish(.1)
   out(pan2(sound,random:i(0,1)))
endin
schedule(1,0,1)

error: opcode 'pan2' for expression with arg types ai returns out-args 
!= 1, line 14

is this a limitation, or is it supposed to work?

thanks -
	joachim