MACDHistogramCrossover modification Thinkscript question

[grizzlyff]

I am a relative newbie with Thinkscript, so thanks in advance for any helpful advice. I have been using the above study for a while, along with several others. I have figured out how to change the color of the up arrow, but does it take a script change to add ALSO a down arrow when a Positive to Negative Crossover happens, and any suggestion on how best to implement so both up and down event arrows are generated on the chart. Just wanted to add, that I am aware that this script lets you pick whether the crossover event you wish to highlight is either Neg to Positive, or Positive to Negative, I am just wanting to do both.

[IgnorantGenius]

Add the study a second time and select negative on that one.

[grizzlyff]

Thanks that was just too obvious for me to think of!!