Crescendo decrescendo velocity

I had already proposed this plugin in the 'Plugins' forum as a response to a need, with a small modification of which i later realized that it contained a small 'bug'. This led me to rewrite it and propose it in this new version. Its purpose is to manipulate the 'velocity' of notes to create 'crescendo' or 'decrescendo' effects, or to increase or decrease their value by a fixed amount. You can select with 'blue rectangle' or individual notes, and you can filter out unwanted voices. In the case of a 'crescendo' or 'decrescendo' effect, it is recommended to select 2 or more notes (what would be the point of selecting only one note?). You can also choose between different options for the trend of the increase or decrease 'curve'. A 'slider' will allow you to change the shape of the curve (in a way that is not excessive).
The usefulness of this plugin consists in "humanizing" the performance of a piece of music, keeping in mind that Musescore is still a music notation software and not a DAW, and that NOTHING IN THE WORLD can replace the performance of a human being.
Available for versions 3.6.2 and 4.4.4.