In the macOS terminal, enabling the "Use Option as Meta key" option allows using a number of shortcuts to edit a command. For example, you can press Option + F to move forward by a word, Option + B to move back by a word, Option + Delete to delete a word and so on. There's no option in Textastic's SSH terminal to use Option as Meta key. instead, for example, pressing Option + F enters ƒ rather than moving forward by a word; ditto for other Option shortcuts.
The ask is for Textastic to offer a setting that will enable using Option as Meta key in the SSH terminal.
Customer support service by UserEcho