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We are sorry but there's no way to hide the links on the Gantt Chart without removing the predecessors/successors from the tasks.

To unlink two tasks, please delete or uncheck the Task ID from Predecessors/Successors column, or select both tasks and go to menu Task - Unlink. To change the Start date for a task, please make sure that the % complete is set to 0.

FS is an abbreviation for Finish to Start dependency. It forces a task to start only when/after its predecessor/successor has finished; predecessor/successor finishes and the other starts.

To add Successor to tasks, go to Gantt Chart view and in Successors field insert the Task IDs or select the successors from the field's drop-down list.

To add a start to finish dependency between tasks, you need to establish a Start to Finish dependency in the Predecessors or Successors column or in Task Information dialog under the Predecessors tab.

To make a Start-to-Start relationship between tasks, you need to establish a Start to Start dependency in the Predecessors or Successors column or in Task Information dialog under the Predecessors tab. For example, you have task ID 1 and task ID 2 and you want to establish a Start-to-Start dependency. In task ID 2 on Predecessors columns write 1SS.

There are two ways to establish a relationship between two tasks or link two tasks:

1. Click on the task that will be dependent and go to Task Information – Predecessors – select the task that will dictate the relationship and the type of link between them – click OK.
2. Enter the ID of the task in the Predecessors/Successors field. You can enter the ID of the predecessor/successor and this automatically creates a Finish-Start link from the predecessor/successor to the current task or you can enter the ID of the predecessor/successor followed by the link type - a value in {SS, SF, FF}.