I wanted to compare Volume surge today to 20day MA of volume to see the conviction for the stock. There is no way in custom field to build this field. I tried with Vector Vest Tech. personnel over half an hour and he suggested to create request to allow this to be created. You already have a field for 50 day Moving average of volume. I am looking for a 20 day. I created this field using custom field builder but could not compare to daily volume surge with a specific multiplier.

I am trying to write John Carter's indicator Momentum + Conviction using MA (volume), ADX and +DI and -DI.
Thanks.
Sid Munshi