[Lazarus] Package does not use my register procedure in the unit

[ik]

Hello,

I'm creating mini tests to create at the end a split plugin for Lazarus.

I started doing some experiment with menus[1], and display form, and
the package does not seems to use my register unit.

What am I missing or doing wrong ?

Thanks,
Ido

[1] https://github.com/ik5/split_lazarus/tree/master/tests/ide_info