If you trully need to use more than 10 layers, you might try to modify the Energy+.idd file. I took a quick look just now, and the construction part is on line 6348 (use a word processor to open the .idd file). There you can try and add more inputs to the construction. I did not try this, and I do not know for certain if it will work, so i recommend you make a copy of the .idd file before altering it, just in case.