I Could Not Add The Accents I Wanted. -_-
In Musescore click F9 for a palette if it's not displayed. select ornaments and articultions, choose the accent you want, Click with the left mouse and hold the button to drag the symbol to the note you want to accent. Move the cusror arrow point until it's over the note head and it turns red, then release it and voila. It may take you a couple of goes to get it right, but then you'll see it's really very simple.
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