Associate a Grants Contract Line with the project task

Summary

Is is possible to associate a project task with a contract line created from a grant?

Content

Hello everyone,

I want to be able to associate my contract line's associated projects at the task level. However, it doesn't seem possible for a contract issued from a grant, because it creates the contract with a line already associated with a project.

Therefore, I cannot add a task, because the global project is already associated with the contract:

You can't associate this project and task to this contract line. (PJB-2190372)
A project and task in the same branch but at another level of the task hierarchy is already associated with a contract line. You must select a project and task from a different branch, or from the same level of the same branch of the task hierarchy.