These controls can be changed by Clicking your Avatar, and then selecting the "Controls" tab. 

The default controls are:

• Camera Controls
  • Move Camera - Left click and drag in empty space
  • Zoom Camera - Scroll wheel
• Selection Controls
  • Select Ship - Left click ship
  • Select All Ships - “A” key
  • Group Select Ships - Space Bar + Left click and drag
  • Select Similar Ships - Double click ship
  • Cycle Group (forward) - Right arrow key
  • Cycle Group (backward) - Left arrow key
  • Create Group - CTRL key + number keys
  • Add to group - Shift + number keys
  • Select Group - Number keys
• Movement Controls (Selecting start next to these controls will put you in a tutorial that teaches you how to use them)
  • Move Ship - Left click in empty space
  • Toggle Strafe - Right click in empty space
  • Set Facing - Right click + drag in empty space
  • Stop - “S” key
• Targeting Controls
  • Pursue and Attack Target - Left click on enemy shift