Make it so you can filter your sounds in the soundboard on for example alphabetical order.

Make a button where you immediatly can stop a sound on your keyboard.

Make it so when you want to add a sound to your soundbaord there is a button that immediatly puts a copy of your chosen sound in your soundbaord.

The ability to sort by name, duration, or time added sounds on soundboards would be awesome. It would definitely help me find specific things I'm looking for, since the longer titles tend to get cut off.