Selected Text sends Ctrl+C first; Whole Field sends Ctrl+A Ctrl+C; Clipboard uses the current clipboard.

The chosen transform is applied by the bundled Windows robo.exe helper. The same {curly token} transforms are available from the Keyboard Shortcut action.

Paste in place ends with Ctrl+V so the transformed text replaces what you started with.
Copy to clipboard only stops after putting the result on the clipboard.

Auto inspects the acquired text, ranks the applicable transforms, and applies the top-ranked one.