Running parallel behaviors

Help / General
1

I am trying to run multiple sub-behaviors in parallel, using the syntax defined in the website:
“do behavior/scenario,…”

I get the following error: do can only take one action inside a behavior

Here is an example to make it more concrete:

behavior simple_1():
    take SetThrottleAction(0.8)
behavior simple_2():
    take SetSteerAction(0.2)

behavior simple():
    do simple_1(), simple_2()

This results in the above error. Am I missing something? Could you give an example of how this should be done correctly?