I can create a collapsed sub process, but cannot do anything useful with it

[pihme]

Describe the Bug In desktop and web modeler I can create a collapsed sub process, but then I cannot do anything useful with it.

Steps to Reproduce

1. Create Camunda 8 BPMN diagram
2. Create task
3. Use wrench menu to turn it into a call activity (this adds additional entries to the wrench menu)
4. Use wrench menu to turn it into a collapsed sub process
5. Maybe there is a trick I am missing, but in dedktop and web modeler, I don't see a way to do anything useful with it.

Hints

• Works great in https://demo.bpmn.io/new where I have this arrow to go into the details
• Doesn't work in current web modeler or in desktop modeler version 5.0.0

Expected Behavior

• Either I cannot reach that state, or
• I can navigate into the collapsed sub proces and edit it

Environment

• Browser: Firefox
• OS: Ubuntu 21.04
• Library version: Desktop Modeler 5.0.0, current web modeler

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Depends on https://github.com/camunda/camunda-bpmn-js/pull/139

[christian-konrad]

Additionally to that, you can not convert a task into an expanded subprocesses in the Web Modeler with the wrench action; you need to convert it to a call activity, first. This needs to be fixed, too.

This means

• Prevent the creation of collapsed subprocesses in C8 at all
• Allow to convert blank tasks into expanded subprocesses in the Web Modeler again

[marstamm]

As long as Cloud does not support collapsed subprocesses, I think it should work like it did with previous modeler releases.

This means that you can model collapsed subprocesses (for non-execution or compatibility usecases) and expand them, but can't collapse subprocesses. It is a bug that the expand option is not available in cloud modeler, which will be addressed in https://github.com/camunda/camunda-bpmn-js/pull/139

[nikku]

@marstamm What is the status of this issue? I do not see any PR referencing it.

[marstamm]

This was an issue in camunda-bpmn-js and was released as v0.16.0 and modeler 5.2.0