Hi Oliver,
you are right, i should have read your question correctly. the example swot analysis is trying to show using properly like within the chart. your need is more in the visualisation properties panel of compose room.
i did a quick search in github repository and couldn't find an example.
i do have an extension that shows how it works. can you contact me at my SAP Email raghuraman.ramakrishnan@sap.com , i will provide you the info.
additionally the same example, i will work with @annie and publish to our github repository.
Raghu