[config] Where are my config files and where were they?

[frosencrantz]

I was going to start this as a feature request, but instead starting a discussion to see whether a feature would be helpful.

My macros have disappeared. Not really, just recent commits (likely 96281c5) changed where VisiData looks for and saves macros. I keep an eye on the commits so I knew why they were missing, but where were they?

It is possible to find the current path via the commands open-input-history and macro-sheet and look at the source column in the SheetsSheet. I didn't realize this initially, so I was looking at the code. Not sure if there are any other saved files.

I think other users will hit problems, especially when the next release goes out. I was thinking it would be useful if there was a command that opened a new sheet with 3 columns, name (e.g input history), absolute path, previous path (hidden by default). So it would be easy to find where those data files are now, and what the likely old path is, so it is possible to move the files.