Instead of "Tool 1", "Tool 2", "Tool 3", it would be nice to map to named tools, like "Pencil Tool", "Split Tool".
There's a mismatch between tool numbers between Timeline window and Edit window. Everything's shifted by one. It's not right, adds unnecessary cognitive overload (I need to look at the available tools and count each time I use them)
Also the key mapping is more obvious and consistent.