After https://github.com/haskell/haskell-language-server/pull/2920, hls-class-plugin has two configurable fields now(after https://github.com/haskell/haskell-language-server/pull/3107), including: 1. `haskell.plugin.class.codeActionsOn` 2. `haskell.plugin.class.codeLensOn` But currently vscode-haskell only has the first one.