How to use resume on selected node feature

[daniel-winter]

Hello together, with this merged PR #6885 its now possible to use resume on selected nodes. Unfortunately, I can't found any documentation/code example how to use it now, see question marks in the code. I am not sure whats needed (parameter etc.) to trigger a specific node?

templates:
    - name: build-and-test
      dag:
              tasks:
                - name: approve
                  template: approve
                - name: approve1
                  template: approve1
                - name: wait-for-approve
                   dependencies: [approve]
                   template: wait-for-approve
                - name: wait-for-approve1
                   dependencies: [approve1]
                   template: wait-for-approve1
    - name: approve
      suspend: {}
      ???
    - name: approve1
      suspend: {}
      ????
     ....

We have already upgraded argo-workflows to v3.2.0 but the resume button for the node is missing in the sidebar, see screenshot below:

Can somebody please help me out here?