Nested stages

Hello,

i have a JenkinsFile with multiple nested stages.
A simple example would look like this:
```
pipeline {
agent any
stages {
stage('Stage A') {
steps {
script {
...
}
}
}

stage('MFC5xx') {
parallel {
stage ('Stage B') {
stages {
stage ('Stage B 1') {
steps {
...
}
}
stage ('Stage B 2') {
steps {
...
}
}
}
}
stage ('Stage C') {
stages {
stage ('Stage C 1') {
steps {
...
}
}
stage ('Stage C 2') {
steps {
...
}
}
}
}
}
}
}
}
```

The status on the github page shows me the results from Stage A and B and 'continuous-integration/jenkins/branch'. How is it possible to show the status from Stage B1, B2, C1 and C2?

Plugin version is 3.5.0. Jenkins is 2.176.3.