Hannes,
I attempted the link, but got an "Operation Failed" popup , "we are sorry but we are unable to provide the requested solution at this time"
I have been attempting the Open SAP courses - and I have an instance of the Demo Appliance Landscape which I am attempting to use.
I did however add HANA Studio to my PC, but again having trouble adding a system on HANA Studio (either hostname issue, or username / password combo not working for HANA Studio) I don't remember setting one for the desktop version