So as of v4 beta (version Feb-27-2019), there were:
"Added methods to a scene browser item:
item.find('name') - will search all children and return an item with that name or null if none present."

So maybe this could be added to Get by name node?, in order to select edges, as children of a Brep object, for input for Blend node, or Fillet node?

(I noticed that in MoI3, named edges could be selected in Scene Browser)
Also the very old Separate Objects by Name script (v2), does not work for named edges (with the same name.).

- Brian