Coming back from a long vacation and I almost missed this new Power BI killer feature: Field Parameters! Not to be confused with Dynamic M Query Parameters that I ranted about here, field parameters solve a long-standing limitation of Power BI that prevents you to bind dynamically dimension members to a visual. Dynamic binding wasn’t issue with measures because they are dynamic and can evaluate runtime conditions, such as slicer selection. But dimensions were a different story. Once you have bound them to a category bucket in a visual, you couldn’t change them on the fly.
Read on for more information on a common scenario in which field parameters can be quite helpful.