In Binfire you can create subtasks inside a task. Any task which has subtasks is called a container or Parent task. You can add subtasks to a subtask too. You can keep doing this process up to six levels deep. This means a subtask at level six has five container tasks above it. Subtasks inside a container can have dependencies to any task in the system except their parents. This makes a powerful system for creating the most complex project roadmaps possible. The software in Binfire automatically makes sure the subtasks inside a parent task are compacted and there is no wasted time gaps. Also a container task’s start and end dates are set by the software using the earliest and latest dates in its subtasks. In the above image the container A is the default Gantt chart created for a parent task with two subtasks in which one is dependent on the other. This is what most people want in most cases, but there are times the project manager wants to add a time gaps between the tasks or make the parent task longer than its subtasks. There are several ways that you can do this and two cases are shown in the above picture.
To make a container task longer than the tasks it contains, you can use milestones as shown in the above image. A milestone is an event in Binfire’s jargon so it has zero time length and could be used to extend tasks without assigning resources to a project. Container Task C is extend by having milestone a placed at the end of the time slot we want the parent task end. If you extent (make them longer) subtasks e and f, the system first will fill up the empty space and then will make the parent task longer f needed.
To create a gap between tasks which are dependent on each other, use the Drag and drop in the Gantt chart to push a task to the right. Container task B has two subtasks with one dependent on the other. Subtask C is pushed to the right to create a Time Gap between the two subtasks which are dependent in the Gantt chart.
Press the link here for more information about how task management software aspect of Binfire works.