SAP BW connector parameter input: How?

[Sokon]

I want to connect to a SAP BW Query and define parameters. But how?

The April 2017 feature summary for PBI Desktop talks about "enhancements to parameter input experience for SAP HANA & BW". However, theres no live demo in the video and the screenshots are like this one:

When I open my PBI desktop version (april 2017), connect to a BW and select objects similar to the situation in the screenshot above, it looks like this:

How do I switch to the parameter input view?