Is it possible to make a global change so that GeneratedValue changes from IDENTITY to UUID for all Entities at once:
there is no "global" settings in Skipper. It's necessary to set it to each entity one-by-one.
But in case that you need this setting pre-configured for any new entity, you can update entity template (https://help.skipper18.com/expert-usage/customization/extending-templates/) so any new entity will have this ORM property filled
Welcome to the Skipper support forum. This support forum covers both Skipper and its older version, ORM Designer issues.
Feel free to ask us anything about Skipper or ORM Designer. If you find any problem or glitch, or if you have an idea for an enhancement, please let us know.