Hello,<br>
<br>
Here is a set of commands that will setup a bookmark to track a channel at a given X-position in reference to the trigger point.<br>
<br>
callouts:callout1<br>
callouts:callout1:type bookmark<br>
callouts:callout1:bookmark:source ch2<br>
callouts:callout1:bookmark:xpos -2E-3<br>
<br>
Change -2E-3 to your desired X-position referenced to the trigger point, currently this will track the value 2mS before the trigger.  You can use the other callout formatting commands listed in the programmers manual if you want to improve its presentation.