IWBNI there were a utility that could be used to clear all changes and only those changes that have been made by using a given special tool in a given region. As it is now, this is possible for the special tools listed in the following table:
 
 

Special Tool	Utility to Clear All Changes
Secondary Beam Break	MassEdit>Clear Items>Entries> Secondary Beam Breaks
Beam Extension	MassEdit>Clear Items>Entries> Beam Extensions
Tie	MassEdit>Change>Ties>Remove Manual Positioning

For the special tools listed in the following table, a utility exists that may be used to clear all changes made with each tool. However, these utilities have side effects. For example, in order to use the Manual Positioning option on the Music Spacing Options dialog box to clear changes made with the note position tool, music must be respaced. Or, if changes that have been made with the beam angle tool are cleared by using the menu item MassEdit>Clear Items>Entries>
Stem and Beam Alterations, all changes made with the following tools are also cleared: stem length tool, custom tool, broken beam tool, secondary beam angle tool, and beam width tool.
 
 

Special Tool	Utility to Clear All Changes  (with Side Effects)
Note Position	Options>Document Settings>Music Spacing Options>Manual Positioning>Clear and then respace music
Notehead Position	MassEdit>Clear Items>Entries> Notehead and Percentage Alterations
Note Shape	MassEdit>Clear Items>Entries> Notehead and Percentage Alterations
Accidental Mover	MassEdit>Clear Items>Entries> Notehead and Percentage Alterations
Stem Length	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Custom Stem	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Beam Angle	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Broken Beam	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Secondary Beam Angle	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Beam Width	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Beam Stem Adjust	MassEdit>Clear Items>Entries> Stem and Beam Alterations
Dot	MassEdit>Clear Items>Entries> Dot and Tie Alterations

Finally, for the special tools listed in the following table, there is no utility that may be used to clear all changes made with the tool:
 
 

Special Tool	Utility to Clear All Changes
Reverse Stem	No utility available.
Stem Direction	No utility available.
Double/Split Stem	No utility available.

This could be implemented by adding a submenu item called Clear Special Tools to the MassEdit menu. This submenu could contain a menu item for each special tool. Each menu item would clear all changes made by a given tool in a selected region. Prior to clearing any changes, a message box would be displayed to allow the user to confirm that the changes should be cleared.

Alternatively, the interface that exists for some special tools that allows one to clear changes for a tool by selecting a handle and pressing the Delete or Backspace key could be implemented for all tools and extended by implementing the following two suggestions:

• Suggestion 438: An Option to Show All Handles for the Current Special Tool
• Suggestion 259: Enable Select All for Special Tools