If you wish to increase your BTC mining power on your miner, you can simply increase your bond MXC amount by creating a new bond (as many as you want as long as it covers your MXC balance!) through the DataDash app.
To create a new bond, you can follow the steps below:
BTC mining is on a per miner basis, and thus bonding MXC can be done for each miner. Remember the formula - the more significant the bond, the greater the mining performance!
To bond the first time on your miner, please refer to this article.