15 b4 bug - "Media In" problem with Fusion panel

Hello, I have problem with setting Global In/Out for Media In in the Fusion section. In standalone Fusion it works great. There is also some more options as Hold first frame / Hold last frame.
If I insert some static frame directly it has only one frame without any option to make it longer.
My workaround is make it as "Fusion clip", but there is same problem, it can not be changed.
I hope that it is bug and not feature, because it is only reason, why I can not use build-in Fusion.
If I insert some static frame directly it has only one frame without any option to make it longer.
My workaround is make it as "Fusion clip", but there is same problem, it can not be changed.
I hope that it is bug and not feature, because it is only reason, why I can not use build-in Fusion.