Don't we all wish? You'd think it was a 10 min coding change. As it is, I'm 25000 LY from Earth and can't jump in for some quick bounty hunting. Mildly frustrating, but increases the attachment to the one commander I've got.
The data format is already there. You can see it in the XML friends list in the logs if you turn VerboseLogging on. It just needs some time allocating to implement it. Low priority at the moment. Maybe they [devs] will look at it after Powerplay.
You can buy a 2nd game and do it that way - personally I am against multiple save slots except in one case and that is the explorer. A 2nd save slot should open up when the primary save is >500LY from inhabited space but there is no swapping of resources and it is inhibited once the primary returns within 500LY