This post was merged with CUSTOM TX FEES NEEDED by ShapeShift Fox about 1 month ago
Well I think it is easy to understand ..
To be able to place the fee based on our decision, as we can do in other hardware wallets.
Fees: - Low, Mid, High - Custom by user or Recomended for KeepKey (Shapeshift)
I think it would be very useful, since sometimes there is not much rush for the transactions to be confirmed, in addition it would add more versatility, note this only in external transactions (towards blockchain) in the trade, it seems to me well as it is now.