Harm's way and Shining Shoal - it's not possible to choose which damage and amount will be redirected if multiple targets get damage from one source

[Shining Shoal](http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=74519)
You may exile a white card with converted mana cost X from your hand rather than pay Shining Shoal's mana cost.
The next X damage that a source of your choice would deal to you and/or creatures you control this turn is dealt to target creature or player instead.
[Harm's Way](http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=190166)
The next 2 damage that a source of your choice would deal to you and/or permanents you control this turn is dealt to target creature or player instead.
Ruling:
01.10.2009 As you cast Harm's Way, you target the creature or player that the redirected damage will be dealt to. As Harm's Way resolves, you choose a source of damage. You never choose the original recipient of the damage; Harm's Way will apply to whatever the chosen source tries to deal damage to, as long as it's you or a permanent you control.
01.10.2009 If the chosen source would simultaneously deal damage to multiple permanents you control (like Pyroclasm could) or to you and at least one permanent you control (like Earthquake could), Harm's Way will redirect just 2 of that damage. It won't redirect the next 2 damage that would be dealt to each recipient. You choose which 2 damage is redirected. If you like, you can choose to redirect 1 damage that would be dealt by the chosen source to each of two different recipients.

Example:
Let's say I have 2 Knight of Meadowgrain in play and my opponent casts Volcanic Fallout.
Harm's Way prevents 2 damage, and, therefore, will only redirect 2 damage. You choose which damage is prevented. So, in the case of Fallout, you could either save one (or both) of your Knights or prevent the 2 damage to you.
Currently it's not possible to select exactly which damage amount is prevented to which permanent/player.