Sampler Track further FRs

Hi,

Would like to have dedicated undo/redo buttons for Sampler Control as it is not included in the undo history.
Also Trim(Crop) mode is not available in slice mode. I was expecting a r crop option on a slice when I right click on it.
In slice mode the playhead is not visible passing through the slice. Sometimes I use the playhead visual to decide where to put extra markers.
Another thing is I couldn’t find a way to snap to transients when editing slice markers. Snap to zero crossing does not seem to help?
Prev/next arrows to preview/load other samples in the loaded sample’s containing folder.
Finally self contained Sampler Track presets would be great.