custom exit in G_SET_FORMULA_EXIT

Hi expert,

I have create a custom implementation ZG_SET_FORMULA_EXIT, and i have insert a new custom exit.

Now when i go in transaction GS11 for create a new variable, but when i chose variable type "Formula", i don't see my new custom exit.

Can you support me for see and chose my custom exit for create a new variable to use in a report painter.

Thanks

Luke