Custom memory section for subsystem

I have been following the Embedded Coder guide to use custom memory sections for Subsystem.

I have created a new package with my memory section that has the pre and post direction #pragma blabla.

I have linked my data dictionary to this package, so I can see that memory section.

But whatever I do, the memory section doesn't appear in the subsystem drop down.

I must have missed something, but I can't figure it out.

I also tried adding a Function custom template. When I do, I can add it to the "Function Default" in the code mapping editor, but I don't want to change the default, I want to move one function subsystem only!

Thanks,

Quentin

[Quentin Coret]

I've followed this: https://uk.mathworks.com/help/ecoder/ug/control-data-and-function-placement-in-memory-by-inserting-pragmas.html#mw_2cafc0af-c99b-4336-84bd-ae46168dd01f

Section "Override Memory Section for Atomic Subsystem" says I should see my new memory section after adding it to the package, but I do not.