Are VoiceOver activities on the mac capable of handling automatic language detection changes?

I usually have automatic language detection off, on the speech tab. If I want to enable it I have to press VO F8, and then Command 3, and then navigate around until I find that check box and check it.

I thought setting up an activity for this would be much easier , but it looks like the activity doesn't care about that setting.
I set up the activity, selected the speech settings, then I hit define and made sure the language detection check box is on.

Has anyone tried this out? Is there enough clarity as to which settings do activities respec and which others they simply ignore?