Stopping a midi track when another plays

[flatuswalrus]

I do not know the official term because if I did I would be able to find what I am trying to do, haha.

I have a drum kit with each part of the drum on its own track. So, the closed and open hi-hat are on separate tracks. Each track is using ReaSamplomatic 5000 as each part of the drum kit is sourced from samples.

The open hi-hat sound continues when the closed hi-hat sounds, which I understand why. However, would someone be kind enough to point me in the right direction on how to set it up where the open hi-hat track stops when the closed hi-hat track plays?

I swear I am not being lazy as I have just spent an hour searching for this but cannot find it despite knowing that it can be done. Thank you in advance.