You cannot disable tasks in the data stream, but you can right-click and disable tasks in the control stream. To get around the first problem, I copy the data flow task to the control flow and paste it. Disable the new data flow task, and then remove what I do not want to perform from the static steps of the data flow task. Then, at least, I still have the original steps for copying to the data stream that I use, since I want to add them.
Hlgem
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