In addition, the indicator will show when positive and negative divergence occurs on the current timeframe. Divergence can be a little subjective but it seems to find the important ones.
Finally, it highlights when the current crosses. I was finding once you squash it down it gets difficult to see so I made that easier.
For me I don't tend to use the divergence feature (which is ironic as i found it very hard to code) but being able to see what is happening on the timeframe above is a very effective filter saving me from bad trades.
The script is a little scruffy in places but neat enough to adapt to other indicators. Somewhere I have the same principle for - one of these days I'll find it and make it available.
Hope thats useful to people and good luck.
option to make upper stochastic grey
I fixed it and modified the input but I've dropped the divergence - its too complicated to fix. Its the previous revision if someone wants to rescue it...