Adding comment to opened java file:

Refer Documentation > Using plugin use case 1

Adding comment project:

Refer Documentation > Using plugin use case 3

Adding comment to java/non-java file:

Refer Documentation > Using plugin use case 2

Copyright comment file:

Refer Documentation > Plugin setup step 2

Plugin preference setting:

Refer Documentation > plugin setup step 4

Choose extension for adding comment to project or directory in Navigator view:

Refer Documentation > Using plugin use case 3