Override a shortcut used by a built-in command using API

[DRoam]

If I go to Customize --> Keyboard tab, find the "Line" command, and try to set its shortcut to "Ctrl+Shift+L", I'm told that "Ctrl+Shift+L" is currently assigned to "Loft [Sketched Features]", and I can click "Yes" to override and take the assignment from the Loft command.

I'm trying to figure out how to do the same thing but through the API.

I can use the following snippet to set the line command's shortcut to something like "Ctrl+L", or "Ctrl+Alt+L":

Dim oLineDef As Inventor.ControlDefinition = ThisApplication.CommandManager.ControlDefinitions("SketchLineCmd")
oLineDef.OverrideShortcut = "Ctrl+Shift+L"

However, when I try to set it to Ctrl+Shift+L, I get an error. Presumably because the shortcut belongs to the Loft command.

I tried preceding the code above with this, to remove the Ctrl+Shift+L shortcut from Loft first:

Dim oLoftDef As Inventor.ControlDefinition = ThisApplication.CommandManager.ControlDefinitions("PartLoftCmd")
oLoftDef.OverrideShortcut = "LO"

... and it does change the shortcut shown for Loft in the Customize dialog, but apparently, Ctrl+Shift+L is still tied to the loft command under the hood. So the assignment of Ctrl+Shift+L to the line command still fails.

How can I completely unassign Ctrl+Shift+L from the Loft command using the API, so that I can assign it to the Line command using the API?

[bradeneuropeArthur]

what do the messageboxes show?

Public Sub shortcut()

Dim oLineDef As Inventor.ControlDefinition
Set oLineDef = ThisApplication.CommandManager.ControlDefinitions("SketchLineCmd")
'oLineDef.OverrideShortcut = "Ctrl+Shift+L"
MsgBox oLineDef.DefaultShortcut
Dim oLoftDef As Inventor.ControlDefinition
Set oLoftDef = ThisApplication.CommandManager.ControlDefinitions("PartLoftCmd")
'oLoftDef.OverrideShortcut = "LO"
MsgBox oLoftDef.DefaultShortcut
End Sub

Regards,

[DRoam]

Loft's "DefaultShortcut" is "LO", according to the API. Which is odd because it's actually not, it's "Ctrl+Alt+L".

Line's "DefaultShortcut" is blank, according to the API. Which is also odd because it's actually "L".

I can't find method or property of the ControlDefinition for Loft that is aware of the assignment to Ctrl+Alt+L, or can de-assign it. Surely I'm missing something...