Pose mode animation tools for object mode

Hi there !
In armature pose mode there are specific tools you can use to breakdown your keyframes (by a amount of percent) like breakdown pose for exemple.
It’s so frustrating that the tool is there but you can’t use it on object keys without armatures.
For exemple, now with grease pencil it’s super usefull to animate directly your object without attaching it to any bone. And for other simple object armature is often not need at all…

Is there a workaround ?
Do you know any addon that add this ?
Can I find these tools somewhere as python code so that I can remake them for object mode (but I guess it’s not python under the hood)?

Thank you for reading