Default Long Text required for KP06

Hello Gurus,

In KP06 for Cost Center / Cost Element planning, Long Text is available at Cost Element level (Overview screen). How can I change this to ONLY allow for Long Text at the next level (Period Screen)..... So that the Planner can create Long Text e.g for Period 1 but not for Period 2.

I am hoping for a functional solution. Please help.

Regards Debra