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Timeline The timeline visualizes Jira projects / issues as Gantt chart elements. Initially, timeline shows projects (summary tasks), tasks including progress line, and task dependencies (links). It allows to manage the tasks and their dependencies. For more details, see Working with tasks.
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Time scale at the top of the timeline changes according to the selected scale.
Starting the app version 2.2.x, the users can enable the task deadline display (green arrow pointing down) by configuring the Deadline field in chart configuration Chart settings tab
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Also, starting the app version 2.2.x, the app users can easily convert task to a milestone (purple) and vice versa, simply, by hovering over a task and right clicking and then selecting the option, s shown below.
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