jit.cellblock mouseclick problem

In the patch below, when I click on something in the first column, the jit.cellblock generates a response, which is the message in the second column, which is printed to the message box. It works.

But the problem is that to grab the response, I have to select (via message) something in the second column, and thus I've selected a different cell than has been clicked on. The jit.cellblock then reads any subsequent mouse movement, as well as the release of the mouse button, as a reselection of the cell in the first column. You can see in the max window that the cells are triggered over and over.

Is there any way around this? Is there any way to trigger output from the jit.cellblock without having it toggle back and forth between the cell that has been clicked on and the cell that has gotten a select message? Or to put it another way, is it possible to trigger a cell without selecting it?

I hope I've just missed something really obvious.