Uses PlotDevice.

• Download PyYAML (the zipfile is fine).
• Unpack it.
• Copy the yaml directory (inside of lib) into ~/Library/Application Support/PlotDevice or the same directory as these files (per the manual).

To modify the order of the cases, just change the headings setting in data.yaml. To add a case (such as vocative), do this:

• Add it to the headings setting
• Add it to the declension data (same format as the others)
• Tweak spacing as necessary

To switch to the alternate version in this repo, edit line 4 of latin-declensions.pv to point to data-vocative.yaml instead of data.yaml, then rerun the script in PlotDevice.