Installing Indigo after Kinetic?
For reasons detailed here, I have been using Kinetic but need to install Indigo: http://answers.ros.org/question/24065...
As is clear there, I am a total noob to ROS. Is there a protocol for installing a new (old) distribution of ROS once you already have one? I've googled it and didn't find anything explicit. For instance, once I run roscore, which version will run? If I just install indigo and then source the bash will that become the default? Or are there collisions/conflicts I'll need to resolve such that it might be best just to uninstall Kinetic Kame?
I'm in Ubuntu 16.04.