Nice and tiny addon Puntuado con 5 de 5 estrellas

The clipboard clearing isn't so necessary.
On other hand, currently the shortcut: Ctrl-Alt-C appends the selected text with new line.
It is more valuable imho to use the button to toggle the mode of shortcut to be able to append the text with or without new line.
Thank you

Esta valoración es de una versión anterior del complemento (2.1.0.1-signed.1-signed). 

Thank you for your opinion!!

Thank you for using this addon!!New version (2.2.0) can use Ctrl+Alt+Shift+C(on Windows) or command+Option+Shift+C(on Mac) to use "Append".
And, new version (2.2.0) can use the same shortcut key to clear clipboard when no text selected.