I want to add a section in the lightbox in order to specify the FF, FS, SF and SS relations between the tasks.
Is it possible?
Yes, you can add a custom lightbox section and show any HTML elements there:
Here is an example:
To create a link between tasks, you need to specify the
source(a task from which the link starts),
target (a task where the link goes) and
type parameters in the
Unfortunately, I don’t have a ready example, you need to manually implement it.