Hello Stefan,
To access HANA XS admin console you need to have additional roles :
http://help.sap.com/saphelp_hanaplatform/helpdata/en/68/6f32f2da7947368f8a6906860bc19b/content.htm
For more information on Scheduling JOB read :
Scheduling XS Jobs - SAP HANA Developer Guide for SAP HANA Studio - SAP Library
FYI: OPINTADMIN role is to view Administrator Cockpit to ensure that you have done all required configuration to run OPINT. If you have this role assigned then you would see an additional tile in your Space.me like :
Do you have on-premise or on-cloud setup ?
Regards,
Archana