Here is my TODO task list which I will complete before final phase evaluation:
1. Complete circular stirrup (spiral) which Yorik posted it in his previous post in this thread.
2. Create wiki pages for all rebar shapes which I completed.
3. Add "Apply" button in all dialog boxes of rebar shapes.
4. Add user facility to give custom spacing when he/she creating rebar. Now user gives custom spacing after creating rebar with rebar tool.
5. Also, discuss with Yorik that can we add rebar tools as default FreeCAD feature.
Currently, I am working on task 1 which is 30 percent completed. I will share on the forum next week.