Thanks for all the comments. Mplabx, notepad++, etc. do allow you to collapse blocks, but do not clearly mark the begin/end so I can determine what goes with what. I'll continue to draw on paper to figure it out. Thanks! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .