Before you start this setup, you must have eclipse Juno SR2, Luna or Mars. Eclipse Keplar not compatible with MobileFirst. Eclipse Helios is only for PHP development, not suitable for MobileFirst. Same go to ADT bundle tool (Android Development Tool). Open your eclipse (for this tutorial we will using Mars).
Click Help and select Eclipse Marketplace.
Search for mobilefirst and click Install for IBM MobileFirst Platform Studio 7.1.0.
Select all and click Confirm.
Select I accept the terms of the license agreement. Click Finish.
Wait until it finish installing.
Click Yes to restart.
Your MobileFirst is ready use.