diff --git a/src/commands/CommandFunctors.h b/src/commands/CommandFunctors.h
index 2d12c418e..4fdfcf550 100644
--- a/src/commands/CommandFunctors.h
+++ b/src/commands/CommandFunctors.h
@@ -16,20 +16,25 @@
 class AudacityProject;
 class wxEvent;
 
+using CommandParameter = wxString;
+
 struct CommandContext {
    CommandContext(
       AudacityProject &p
       , const wxEvent *e = nullptr
       , int ii = 0
+      , const CommandParameter &param = {}
    )
       : project{ p }
       , pEvt{ e }
       , index{ ii }
+      , parameter{ param }
    {}
 
    AudacityProject &project;
    const wxEvent *pEvt;
    int index;
+   CommandParameter parameter;
 };
 
 class wxEvent;
diff --git a/src/commands/CommandManager.cpp b/src/commands/CommandManager.cpp
index b41dd11fd..caa88b7ab 100644
--- a/src/commands/CommandManager.cpp
+++ b/src/commands/CommandManager.cpp
@@ -794,9 +794,10 @@ void CommandManager::AddItem(const wxChar *name,
                              const wxChar *accel,
                              CommandFlag flags,
                              CommandMask mask,
-                             int checkmark)
+                             int checkmark,
+                             const CommandParameter &parameter)
 {
-   CommandListEntry *entry = NewIdentifier(name, label_in, accel, CurrentMenu(), callback, false, 0, 0);
+   CommandListEntry *entry = NewIdentifier(name, label_in, accel, CurrentMenu(), callback, false, 0, 0, parameter);
    int ID = entry->id;
    wxString label = GetLabelWithDisabledAccel(entry);
 
@@ -858,7 +859,7 @@ void CommandManager::AddCommand(const wxChar *name,
                                 CommandFlag flags,
                                 CommandMask mask)
 {
-   NewIdentifier(name, label_in, accel, NULL, callback, false, 0, 0);
+   NewIdentifier(name, label_in, accel, NULL, callback, false, 0, 0, {});
 
    if (flags != NoFlagsSpecifed || mask != NoFlagsSpecifed) {
       SetCommandFlags(name, flags, mask);
@@ -870,7 +871,7 @@ void CommandManager::AddGlobalCommand(const wxChar *name,
                                       const CommandFunctorPointer &callback,
                                       const wxChar *accel)
 {
-   CommandListEntry *entry = NewIdentifier(name, label_in, accel, NULL, callback, false, 0, 0);
+   CommandListEntry *entry = NewIdentifier(name, label_in, accel, NULL, callback, false, 0, 0, {});
 
    entry->enabled = false;
    entry->isGlobal = true;
@@ -916,7 +917,7 @@ CommandListEntry *CommandManager::NewIdentifier(const wxString & name,
                         callback,
                         multi,
                         index,
-                        count);
+                        count, {});
 }
 
 CommandListEntry *CommandManager::NewIdentifier(const wxString & name,
@@ -926,7 +927,8 @@ CommandListEntry *CommandManager::NewIdentifier(const wxString & name,
    const CommandFunctorPointer &callback,
    bool multi,
    int index,
-   int count)
+   int count,
+   const CommandParameter &parameter)
 {
    // If we have the identifier already, reuse it.
    CommandListEntry *prev = mCommandNameHash[name];
@@ -956,6 +958,7 @@ CommandListEntry *CommandManager::NewIdentifier(const wxString & name,
 
       mCurrentID = NextIdentifier(mCurrentID);
       entry->id = mCurrentID;
+      entry->parameter = parameter;
 
 #if defined(__WXMAC__)
       if (name == wxT("Preferences"))
@@ -1469,7 +1472,7 @@ bool CommandManager::HandleCommandEntry(const CommandListEntry * entry,
          return true;
    }
 
-   CommandContext context{ *proj, evt, entry->index };
+   CommandContext context{ *proj, evt, entry->index, entry->parameter };
    (*(entry->callback))(context);
 
    return true;
diff --git a/src/commands/CommandManager.h b/src/commands/CommandManager.h
index 0b3fad11d..44f927154 100644
--- a/src/commands/CommandManager.h
+++ b/src/commands/CommandManager.h
@@ -65,6 +65,7 @@ struct CommandListEntry
    wxString labelTop;
    wxMenu *menu;
    CommandFunctorPointer callback;
+   CommandParameter parameter;
    bool multi;
    int index;
    int count;
@@ -156,7 +157,8 @@ class AUDACITY_DLL_API CommandManager final : public XMLTagHandler
                 const wxChar *accel,
                 CommandFlag flags = NoFlagsSpecifed,
                 CommandMask mask   = NoFlagsSpecifed,
-                int checkmark = -1);
+                int checkmark = -1,
+                const CommandParameter &parameter = {});
 
    void AddSeparator();
 
@@ -293,7 +295,8 @@ protected:
                                    const CommandFunctorPointer &callback,
                                    bool multi,
                                    int index,
-                                   int count);
+                                   int count,
+                                   const CommandParameter &parameter);
 
    //
    // Executing commands