Depending on how and what your data is used for you could create a DataAsset In there it is possible to create bitmask enums.
So if your data is static I would advice this method.
If your data is static on a class or blueprint I would suggest moving this entry out of your struct (not ideal but possible)
If you need dynamic data I would advice @the_nikola 's method as at that point you need to create the data for the struct anyhow
Ref for data asset bitmask enum creation
