Stuart, I apologize for the delay in answering your question about how to get a 1 hour rolling average function.

As you've learned, a 2 hour rolling average function is built in to the WEL (as is 8 hrs, 1 day, and 30 days).  But the WEL allows for any time period rolling average function.  See page 15 (of 36) of the current user manual.

Here's some help for calculating appropriate TC values:

Decide how long a period you want to average - i.e. 1 hour.
Calculate how many 6 second samples there will be in this period - i.e., 600.
Divide this number by 4 - i.e., 150.
Then make TC equal to the reciprocal of this number - i.e., 1/150 = 0.006667

One thing to point out, it's not really a moving average, it's a low pass filter (Exponentially Weighted Moving Average filter).

Hope this helps.

Best regards,

Bill