It's been a while since I've used the IDE and v2 is new to me but I can't figure out how to save a file that is not the main .ino file.
I opened a library demo and it required me to edit a header file, which I loaded and modified. No matter what changes I made the demo wouldn't work. It turns out that the header file wasn't saving in it's original location, so how do I do this?
I suppose a workaround would be to save a local copy of the header file to the project folder and use #include "lib.h" rather than the braces. This will then save along with the .ino.