ok.. for my first project, something I would find very useful
I have a lot of blocks with attributes that use fields to reference attribute values in another block. the structure is VERY consistant (i.e. all the blocks in an area would always reference the same block). But in reusing drawing bits sometimes I get a few here and there that reference the wrong block from copying from another room and such. Since there are a LOT of attributes for finishes, room numbers, room names, items codes, etc I think this would be a big time saver.
So I am thinking it would be a good practice bit to get a selection, find the entities references in those fields and update them to the new entity.
I have NO idea how to start, but thats half the fun