Protobuf-plugin code suggestion not working

Dear IntelliJ/Webstorm/Gogland experts, I am new to these IDE(s). I am working on some research module with gRPC, Go and NodeJS. I have chosen Idea for its maturity in terms of development. But, I have been beating my head to get the code suggestion working for the protobuf-plugin and protobuf code. I have used the Google Protobuf-dt plugin in eclipse and the code suggestion is working fine with that plugin in eclipse but, not with the Idea protobuf-plugin 0.8.0. Can anyone help or suggest on this feature please. Lots of thanks in advance.