OK, I'll answer this one myself
These steps involve creating a registry change file. Do so at your own risk/understanding.
These steps apply to the Microsoft Intellitype Pro 2.1 US/English version.
*** To turn keys off ***
REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey]
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\15]
"MSHCMD"=dword:0000802a
"LaunchSetName"="Juno"
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\1]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\2]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\4]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\3]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\5]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\6]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\7]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\14]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\13]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\12]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\11]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\16]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\17]
"MSHCMD"=dword:0000802a
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\18]
"MSHCMD"=dword:0000802a
*** To turn keys on ***
REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey]
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\15]
"MSHCMD"=dword:0000000f
"LaunchSetName"="Juno"
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\1]
"MSHCMD"=dword:00000001
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\2]
"MSHCMD"=dword:00000002
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\4]
"MSHCMD"=dword:00000004
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\3]
"MSHCMD"=dword:00000003
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\5]
"MSHCMD"=dword:00000005
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\6]
"MSHCMD"=dword:00000006
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\7]
"MSHCMD"=dword:00000007
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\14]
"MSHCMD"=dword:0000000e
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\13]
"MSHCMD"=dword:0000000d
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\12]
"MSHCMD"=dword:0000000c
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\11]
"MSHCMD"=dword:0000000b
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\16]
"MSHCMD"=dword:00000010
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\17]
"MSHCMD"=dword:00000011
[HKEY_CURRENT_USER\Software\Microsoft\Intellitype Pro\AppKey\18]
"MSHCMD"=dword:00000012