2 normal parameters with 1-3 Blendshapes "keyframe", in Cubism Editor free version

This is another case that I need to make a clear distinction.
I must emphasize that this is not this case, not this bug. "・Fixed a problem in the FREE version that prevented the creation of new regular parameters for models containing 3 or more blend shape parameters" I know that this issue has been fixed in v.5.2.00.

But this case is another bug (or a future feature up to).
The problem of this case is https://youtu.be/FbTWrgCSaeY
I have recorded an unlisted sample clip on the VTube channel that I manage.

As you can see in the clip, I can add keyframes parameters more than 3 per item' by adding the Blend key before Normal, which normally the Free version has no more than 2 parameter keyframes. I think this is the bug I encountered.

But I really want to make a small suggestion about this (at the discretion of the staff).
I want this to be a feature that is added. To be fair, I would like to propose up to any item to have 2 normal param keyframes and only 1 blend or 2 or 3.
1 item - > 2 normal param + 1 blend param or 2 or 3

I propose this because since the free version already has a limit of 3 blend params, I think it would be nice and not a problem to make this proposal a "limit function up to".

- Live2D Cubism Free Version: (e.g. Cubism Editor 5.3.00 alpha)
- OS & Version: (Windows 10 22H2)
- PC Model: Biostar TZ77B
- Graphics Specifications: (e.g. GeForce GTX 1060 3GB)
- CPU: (e.g. Intel Core i5-3300)
- Memory: (e.g. 32GB)
- Illustration Software used: (Krita, Inkscape)