Hi @Elisa Schrader ,
Welcome to Microsoft Q&A platform and thanks for posting your query here.
As per my understanding you are trying to look for some sink setting configurations which is not visible in the UI as per the documentation.
Please note that the UI might change time to time due to Product upgradation but the functionality might be present in somewhere else in the workflow.
Kindly navigate to powerquery dataset , there you can see the configurations you are looking for.
Hope it helps. Kindly accept the answer by clicking on Accept answer
button. Thankyou