Fiori Launchpad - EASY Access Menu of different systems

Dear all,
I followed the steps describe in the IT Wiki to enable the sap easy access menu.
https://wiki.scn.sap.com/wiki/display/SAPMOB/How+to+Enable+SAP+Easy+Access+Menu+for+Fiori+Launchpad+Step-by-Step

Setttings worked fine and I was able to link one Backend System successfully.

However I would also like to link a different system, such that the transactions could be found by the APP Finder but I do not understand how. It seems simply be ignored no matter if I use the same target settings (by removing the logical system) or create a new target system with the new logical system.

Do you have any pointer how I could suceed?

Thank you in advance.

Christian