How do I go about placing ATR channels around an 8 period force index? 1,2, & 3 width multiplier channels.

It seems like kind of a strange thing to do since Elder's Force Index doesn't have range. All of the "range" will come from the "gaps" between the values for each bar.

That said, you can just add Keltner Channels to Elder's Force Index on the chart three times to do this. You will set ATR Multiplier to 1.00, 2.00 and 3.00 in the three Keltner Channels indicators.