Is there a way to create sub project in the same way to create sub tasks
Yes. To do so, simply use the keyboard shortcuts Ctrl+RightArrow and Ctrl+LeftArrow to indent/unindent a project while adding or editing it or, click on the arrows on the right side of the project input field.
For task this works, but I'm unable to do for projects.
I've made a short screencast showing how it works, please take a look at it, follow it step-by-step and let me know at what point exactly are you experiencing an issue: http://screencast.com/t/EeaWxLq6YHex
Also, please tell me:
- What browser are you using?
- Have you tried other browsers (if so - which ones)?