Yep, Rufus formats the stick to boot with either/or. And that setting option is already set as both by default.
Rufus was the only one I could get to successfully create a Persistent Live USB recently. Tried a couple of Linux solutions, Tried UUI and unetbootin for windows and none worked. Create a folder on the desktop, restart and the folder was gone. Even tried a few different Distros to no avail. Rufus came through.