I believe that this is not covered by the Preview feature. I simply want to open a file for editing via Quick Open (or any way?) and replace the contents of the active tab, closing the open file and replacing it with the new one.
This behavior is central to the way I edit. Currently, I'm always opening new tabs that I don't want. It's the only barrier left between Code and the way I've used Vim for 15 years. I imagine that this is scriptable, but would like to avoid going down that road. Please tell me I'm missing something.