Add dictionary: cannot update property list
I am trying to add a Latin dictionary to InDesign CC 2022 running on macOS Monterey 12.2. Am following the directions at Adobe Help https://helpx.adobe.com/indesign/kb/add_cs_dictionaries.html. When I get to step #5
>>Add a string element with value <language ISO Code> in Info.plist to the Spelling Service and UserDictionaryService Element or HyphenationService element. Depending on the operating system and InDesign version, you can find the file Info.plist at the locations listed below.<<
I cannot update the property list "Info.plist" when I use the TextEdit app. It says that I do not have permission. I did a Get Info on the file and tried to give Wheel and/or Everyone write access, but it would not work.
The plist is located at /Applications/Adobe InDesign CC/Resources/Dictionaries/LILO/Linguistics/Providers/Plugins2/AdobeHunspellPlugin.bundle/Contents/
Note that the Plugin.bundle is a package and so I had to "Show contents" to view what it containted.
How can I update the plist file?
