Default selection should be in the explorer when adding a folder to a project

When using Ctrl + Shift + P to open the command pallet and typing add folder project a dialog is opened. However, it is hard to use from the keyboard because the default selected item is the Ok button. The user need to press tab twice to get to the explorer tree. Instead the default selection should be set to the explorer tree so the user can quickly select which folder to add from the keyboard.