Auto switch mining altcoin based on profibility? Auto converter?

[vegascoiner]

If I wanted to use my Antminer L3+ to mine other altcoins based on profitability are there any services out there that I can point the miner to which will automatically switch to mining whatever Scrypt coin is the most profitable?

Also, is there a service out there like changily or shapeshift that will automatically convert coins for me at a fair rate without me having to initiate the trade each time? Not sure if shapeshift or changily constantly allow you to send coins in to be exchanged without having to set up a new trade every time.