# Actions with Tasks in Virto Gantt Chart App

Source: [https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/)
Product: Virto Gantt Chart App
Updated: 2026-08-12

You can add/delete/move/resize tasks in Virto Gantt Chart App View.

Hover mouse pointer over any task and the tooltip with brief task information will appear.

![Tooltip with brief task information shown on hover in the Virto Gantt Chart App view](https://img-docs.virtosoftware.com/wp-content/uploads/2024/11/actions_with_tasks_in_virto_gantt_chart_app_1.png)

## Pages
- [Child Task](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/child-task/index.md) — Give a task children when the data source is a Task list; a parent with children is drawn as a summary task.
- [Creating a Task](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/creating-a-task/index.md) — The + Task button creates a task in the chart and writes the same item to the source SharePoint list.
- [Deleting a Task](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/deleting-a-task/index.md) — Double-click a task and press Delete; deletion is available only when the data source is not read-only.
- [Editing a Task](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/editing-a-task/index.md) — Double-click a task to open its form; a read-only data source opens the same form for viewing only.
- [Milestone](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/milestone/index.md) — A milestone is a task of zero duration whose start equals its end; add one with the + Milestone button.
- [Moving Tasks and Changing Task Duration](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/moving-tasks-and-changing-task-duration/index.md) — Drag a task to shift its dates keeping the duration, or drag its edge to make the task longer or shorter.
- [Predecessor and Successor](https://docs.virtosoftware.com/docs/virto-gantt-chart/using-virto-gantt-chart-app/actions-with-tasks-in-virto-gantt-chart-app/predecessor-and-successor/index.md) — Link tasks so a successor starts after its predecessor; the relation is drawn as an arrow on the chart.