This method will only slash flagged grace 
 notes. See also Slash 
 Flagged Grace Notes Plug-in, Slash Flagged Grace Notes (Remove) Plug-in
        
        
            - Choose Document > Document Options > Grace Notes . The Grace Note option appear.
- Deselect Always Slash Flagged Grace Notes if 
 it is selected. When the checkbox is deselected, slashes do not 
 appear.
- Click OK (or press RETURN).
- Click the Speedy Entry tool  and click the measure in question. 
 The editing frame appears.
- Position the cursor over the flagged grace 
 note requiring a slash and press ` (accent). This will place a 
 slash on the grace note.