Trigger for CTRL+LEFT-MOUSE-CLICK?

[moveIT]

I have a browse (not multiple-select) with a column where I can see if this line is selected or not.
When I choose <space> the actual line is selected or deselected (only the column-value is changed). This works fine!
Now I want to select and deselect a line as you can do with a multiple-select-browse with Crtl+Left-Mouse-click!
How can I simulate this behavior? What trigger can I use?

 

[moveIT]

I tried some triggers and found MOUSE-EXTEND-CLICK which seems to work.
Is this the right one or do I have to take something else to consideration using this trigger?

 

[Lee Curzon]

You got it.

It's correct event for multiple-select browse (see KB 82483), so there should be no problem.