Animation Clips cannot have loop time set

[Redesigner]

Describe the bug 💬

I am importing an animated character into unity from blender, with several animations. When opening the import menu, there doesn't appear to be an option to set which animation clips are able to be have LoopedTime set to true. After import, the option remains grayed out for each clip.
Is this intentional?
If so, are there any plans to add this feature?

Steps to reproduce

1. Import any gltf with multiple animation clips
2. Check the 'Animation' tab on import settings

Editor Version 🎲

6000.3

Render Pipeline and version

URP 17.3.0

UnityGLTF Version

2.19.5

Operating System

Windows

When does this problem happen?

• Editor Import
• Runtime Import
• Editor Export
• Runtime Export

Validations

• I have searched existing issues: no issue already exist that reports the same problem.
• I follow the Code of Conduct
• I provided a minimal reproducible example, including files when necessary.