I uploaded 8 DataChannel sample files and some video. Have fun with DataChannel modifier! https://vimeo.com/191921888 http://cganimator.com/3dsmax-2017-1-datachannel-modifier-samples/
The chamfer modifier can already work by smoothing group..so a smooth and a chamfer modifier would produce the same result, no? That said, I've always wanted a more advanced selection modifier to boost the procedural modeling in Max..and it seems this would be it, so cool.
Yes, but you can set the Data Channel to Add / Subtract / or Replace an edge selection. So you can have certain edges you always want to bevel pre-selected and have the data channel update the rest. But Data Channel is way more than an advanced selection modifier. Check out @gandhics video for stuff you can't reproduce…