This is fairly straightforward to do in RTL, using the VB token, with an Accumulate option. You would need the Professional version of MarketDelta to accomplish this. The syntax would something like:

VB > X

Where "X" is your threshold. Then you would configure the VB token appropriately.

For tutorials on RTL, see this page:

http://support.marketdelta.com/entries/372394-rtl-tutorials-for-cus...

I was thinking you meant the cumulative delta for the day across all prices, not just for specific prices. You may wish to see this post in our Feature Requests forum:

http://support.marketdelta.com/entries/198843-rtl-tokens-for-fpbs-a...

At this time, what you are describing is not easy or nearly impossible to do with RTL, though we are considering a development that would make it possible.

Actually, one possibility is to create a 405-minute periodicity chart, where each bar is for the entire day, and then use the VPS RTL token to do what you want. This should work as expected. If you really needed the signal on a different periodicity, you would need to use the multiple periodicity token as well, MPD.