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Right-click on:
tasks in the task structure on the left
a task on a timeline on the right (anywhere except the task keyitem ID)
When you click "Edit" a pop-up window appears, allowing you to modify the task.
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Select a task from the tree on the left by clicking on it (anywhere except the Keyitem ID).
The task is highlighted in blue and an Editor Slider panel appears in between the task tree and the timeline.
Click on the three dots and select “Edit”.
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When you click on the monday item or subitem Key ID (either in the column view or on a timeline), you will be taken to the connected tool.
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Basic tasks don't exist in any connected tools, so Key the item ID doesn't function as a link.
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