Below are steps to Enable YAML/YML editor on eclipse IDE.

• Open Eclipse IDE
• Go to Help menu -> Eclipse Marketplace.
• Search for term “YAML”
• You will get lots of option select “YAML Editor” and click on install as in below screen.

• Click check box corresponding to “Accept Terms and Conditions”.
• Click on Apply button and restart eclipse.

More

To know more about YAML Syntax, Configuration with Java and other supporting language, frameworks and tools, Sample configuration files and JSON and YAML conversion follow below YAML Tutorials and YAML related exceptions follow YAML Issues.

• YAML Tutorials
• YAML Issues and Solutions