ability to modify instance properties in Legend
This is a must!!! with dynamic families driven by formulas with fail over values of 0 or other numbers on purpose, this can cause the family to need to be duplicated and edited just for legend use.
@smichaudN26PG see this link for interest regarding more generalized legend features
Better Functionality for Legends!! - Autodesk Community
un copia propietà dei parametri instanza e tipo tra famiglie
@wr.marshall I have posted and voted on both of these threads.