I'm trying to start and stop virtual machines that run on my vSphere server by adding steps to my pipeline in BlueOcean. To start the VM I tried to add a step called "Invoke an vSphere action, exposing the VM IP under some actions" which has to input fields like shown in the image below:

But when I manually enter the line "[$class: 'PowerOn', timeoutInSeconds: 180, vm: 'Node01']" I get the following error:

Expecting "class org.jenkinsci.plugins.vsphere.VSphereBuildStep" for parameter "buildStep" but got "[$class: 'PowerOn', timeoutInSeconds: 180, vm: 'Node01']" of type class java.lang.String instead

However when I edit my jenkinsfile with a text editor, it is working just fine. after that blue ocean lets me edit parameters in the buildstep.

pipeline {
  agent any
  stages {
    stage('StartVM') {
      steps {
        vSphere(buildStep: [$class: 'PowerOn', timeoutInSeconds: 180, vm: 'Node01'], serverName: 'vSphere')
        echo 'Starting VM'
      }
    }
    stage('PollSVN') {
      agent {
        node {
          label 'Node01'
        }
      }
      steps {
        dir(path: 'C:\\jenkins\\') {
          bat(script: 'dir.bat', returnStatus: true)
        }
      }
    }
    stage('Build') {
      steps {
        echo 'Building'
      }
    }
    stage('StopVM') {
      steps {
        echo 'Stopping the VM'
      }
    }
  }
}