How to Ripple Delete a Keyframe

In my PC I have installed the 22.12.21 Shotcut version.

I have created a filter preset with many keyframes and in the middle I want to delete more than one keyframe in different spots.

But if I delete a keyframe there will be an empty keyframe and I do not want this. I want to push back all the remaining keyframes.

How to do such a thing?

That is not yet implemented yet. There has been a longstanding request for ripple and multi-select operations on keyframes.