Target Management > Devices List
When a port is not open, it’s Port configuration is still shown; eg, “115200-8-none-1-hardware”
But I will want it to be 230400-8-none-1-hardware. So I go to ‘Configure Port Settings’ (which is inconveniently far away from the port details - usually scrolled off the bottom of the screen) and there find that 230400 is already selected! 
I think it would make more sense to show the settings that will be used when the port is opened.
