[yahoo160]

How do you merge a task that was manually split into two, back into one task.

It is not obvious how to do it from the GUI and the online help did not help.

[whpalmer4]

To the left of the task name there is a disclosure triangle. Click it to open the split task. Select all the pieces inside, and delete them as a group.

[Tom Bunch]

That approach will more or less turn the task you are unsplitting back into a copy of the "prototype task", that is, it will look just like a new task. If you have changed the duration for ecxample, that will be lost.

Instead, just drag the pieces until they touch and they will merge.

-Tom

[whpalmer4]

Ah, so it will. Of course, you can't actually drag the pieces until they touch — it still shows a gap at closest approach. Not the most discoverable behavior as a result, and like the OP says, nothing in the documentation. Seem to be some graphic rendering issues as well in the latest SP, I'll send in some feedback.