[Sigia-l] editor question

[Peter VanDijck]

A bit off topic - apologies. We are writing on-screen instructions.
These go on a complex screen (with forms and lots of widgets) and should
be short. Should we say:

"ask your manager to determine when to use this screen."
or is this ok:
"ask your manager when to use this screen."

Is the second one colloquial? Is it better/worse than the first one for
this situation? Good arguments will be needed if so (it is my preference
right now, but I'm not a native speaker).

Peter