Sampler Control File improvements

Hi,

When you drag a sample to Sampler track from Browser (or right click to Create Sampler Track),
It would be great when you click ‘Import Audio File’ on Sampler Control goes to that folder. (And keep in memory even when song is closed)
With that, + - buttons to preview other samples in that folder preferably in place temporarily so you don’t lose the original loaded sample.

Thx