The Migration Cockpit Modeler is a tool in S4HANA Data Migration cockpit that allows us to make changes to existing migration templates or create new migration programs. in the version S4HANA1709 the ability to use modeller for creating new migration programs has increased from previous versions.
However, authorisations is a key issue that needs to be resolved in order to ensure that the LTMOM can be used without interruption.
Below are the authorisations I've found so far that have been required in the absence of SAP_ALL to be able to use the LTMOM transaction.
Please feel free to provide any additional authorisations required as these are what I encountered in my SU53 extract.