(Not sure if by "master sketch" you mean an assembly sketch, or if you instead mean what SolidWorks calls 3D sketch). At least in Link branch, my workflow is t

(Not sure if by "master sketch" you mean an assembly sketch, or if you instead mean what SolidWorks calls 3D sketch). At least in Link branch, my workflow is to name the first part in my document "Layout", and fill it with master assembly sketches, drawing cross-sections of an entire assembled product. Then I create subsequent parts which all import and reference the geometry in those sketches, and never reference other parts. This lets me do a top-down assembly-driven design, which is very fast and easy to modify later on, and freely delete and replace parts without breaking references. FreeCAD supports this workflow via shape binders, and Link Branch speeds it up greatly by automatically creating shape binders as needed. Great to hear that mainstream FreeCAD will soon support those improvements, but I'll keep pointing people to Link Branch until those improvements actually get released.