Rated 5 out of 5 stars

Following to Sebastian's instruction, It has been installed successfully.
When you re-zipping files with 7zip, please note that you need to zip all files INSIDE the folder 'quicktext-0.9.10.1-tb', NOT the folder in whole.
otherwise you will see the error "Install script not found".

I was trapped a little bit.

This review is for a previous version of the add-on (0.9.10.1).