When calling PlayHapticEventInHand, there is no way to provide the frequency to play the haptics at, it's always the same frequency.

While it makes sense for general purpose use to not expose this, for specialised use cases not exposing the frequency prevents building some fun toys and scripts. Some way to explicitly set frequency, perhaps with a different call or an optional parameter or something, would be extremely useful here.

There's also the fact that as the frequency is ignored in PlayHapticEventInHand, it's a little misleading and confusing to use, but I can understand the backwards compatibility issue. Some better way to reconcile this though would be useful.