Answer
No — there's no automated conversion tool between IEE-style permissions and Cloud's projection-based permission sets. The realistic approach is a manual remap: evaluate what each existing role/group actually grants, work out which Aurena/Cloud screens and actions those users genuinely need, and build new permission sets from that analysis rather than trying to carry the old structure over mechanically. Budget this as a genuinely time-consuming part of the upgrade, not a quick migration step.