Unable to add keyframes to Sound track in Sequencer

Hi,
I place an ambient sound in my map, then add it to sequencer and then create a sound track to play sounds there, but there is no way to create keyframes.
Trying it other way around I press little icon to the left of the sound slot in the actor details to keyframe it but, again nothing happens.
If I do this before creating the track, it creates the track, but no keyframe is created.

What I’m trying to do is create a sequence of spatialize sounds. If I add the sound asset to the track the sound is played without spatial consideration.

Am I doing something wrong or it is bugged? Is there another way to achieve this? I need the audio to be played by sequencer.

Thanks

bump? I have the same issue