Select the cymbal in question and then at the bottom right under articulation, change to mute and click edit articulation only. Click on the top right of the Envelope box so it turns blue. Then set it to aftertouch and uncheck random under humanize. Now move the far right envelope point all the way to the left and try hitting the cymbal choke. Adjust the envelope accordingly to get different timings on the choke. You may have to edit other parts of the envelope to fully get what you want.
Visit the Superior 2.0 forums for additional help, there are many helpful people there.