CRW 2.5.0.GA supports IntelliJ IDEA editor apart from Che-Theia Editor.

To use new editor in certain workspace, user should:

• way 1, for existed workspace - go to Dashboard > Workspace > Workspace Configuration > Editors tab:
  

or

• way 2 - create workspace from following devfile:

  metadata:
    name: che-ideaic
  components:
    - id: che-incubator/intellij-community/latest
      type: cheEditor
  apiVersion: 1.0.0