I know a lot of quilt pattern designers and they all use the Electric Quilt software. I like EQ7 I can import a picture of a quilt, isolate a block and use the trace tool to trace the bock pieces and convert it to a block pattern with rotary cutting instructions. There is no how to put the quilt block together for a quilt top instructions on EQ though. I use the quilt layout to rotate and flip block and block pieces to get the lay out I like.