For the half onion: Since it's over indirect heat, it doesn't need to be turned for cooking purposes. As far peeling, if we want grill marks, we peel and put it over high heat at the end and then turn it. If we just want smokey goodness, we peel after - just kind of a when I feel like it.
For the steaks: thin metal spat. and we always end with high heat for grill marks; length of indirect just depends on the firmness we want from the onion. Walla Wallas are always sweet.
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