It would be great to have some sort of measure library for the semantic models. At the moment the measures for the semantic models are part of the semantic model.
It is also not possible to copy a measure to another semantic model.
It would be great to have a central place to add all measures for the semantic model. And just point to the library / individual measures from the semantic model to include them in the model.
This way you can change a measure in the library and it will be changed in all models the measure is used.