Removing "Add From" Options from Timeline Clips

Unity Engine
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1

Hello.

I am making a bunch of custom Tracks types for Timelines.

I just have a readability issue where Unity will auto generate a “Add From” option for every serialized field of each clip type of the track.

In this screenshot, only the last option is useful : “Add Write Float”.
I am trying to get rid of all the others (they are all auto generated from the serialized fields I have on the clip).

image
image1039×678 139 KB

Here is the clip script :

[DisplayName("Write Float Clip")]
    [Serializable]
    public class WriteFloatClip : PlayableAsset, ITimelineClipAsset
    {
        // The FloatReference class have a bunch of serialized fields.
        // Those fields should stay exposed to the user, but not in the "Add Clip" Menu
        [Header("Values")]
        [SerializeField] private FloatReference startValue = new FloatReference(0f);
        [SerializeField] private FloatReference endValue = new FloatReference(1f);

...

}

Any idea where I can look ?
I may have missed it, but I didn’t found how to edit the right clic menu in the timeline context.

It’s unfortunately makes the interface less readable for anybody that didn’t wrote the script.

Thanks in advance.