OK. 1. When you are writing music in staff, there are no numbers written, just figures that are universal for melodic music (other notations exist). It makes total sense to me to expect a system that shows the actual figures (head-stem-flag) that are to be placed, and no some numbers or fractions. That has to do with usability rather than music theory or where you live, or where you learn music. 2. Now, using the lenght of the note is something from USA, German,following that root. In French and Spanish, they are named after the actual figure: Round (redonda), white (blanca, blanche), Black (negra, noir), and so on. Italians use another names. The only thing that is universal for all (Asian notations are different, but adopted this one), is the actual figures. So, if the program is going to be used worldwide, why choose an icon in a button that may be undestood only by North American's and Germans? That is the actual discussion. 3. To answer the question, since that is why we are here for, I have no idea of any plugin to change that, nor any clue of a preference to change to figures. What I would suggest, though, is that since working with the staff view in Sonar is actually a pain for input of a great amount of music, is to get a specialized notation software (finale's notepad is free and basic but works pretty well, AND HAS FIGURE BUTTONS as we may expect), and then import the midi file. Hope this helps. William Martinez Pomares.