On some projects, when I go to the Financial Plans tab, I do not see the New Manual Plan button. What does govern the button being present or not?

Document ID : KB000126286
Last Modified Date : 06/02/2019
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Question:
On some projects, when I go to the Financial Plans tab, I do not see the New Manual Plan button. 
What does govern the button being present or not?
New From Investment Team or New From Assignments actions are not visible either.
Why are these actions available on some projects and not on some others?
Answer:
Cost plan creation/population is governed by the following right:
Project - Cost Plan - Edit All 
Please review the security implementation and ensure the user has got the right for the given projects