with tc2000...you could create a formula which would calculate a day's range. however, if you mean true range or average true range, i don't think it can do that.
That's true, with TC2000 it's a simple matter to setup a calculation of average daily range, although you have to first determine what time-frame you want to cover (i.e., 5day avg range, 20day avg range, 50day avg range, etc.). Unfortunately, as mentioned, it can only calculate the ranges from high to low, it cannot easily take into account gapping as part of the range (although that's possible to setup for short time-frames). So, for general purposes, it wouldn't be useful if you needed to calculate ATR as that incorporates gapping into it's calculation.