Saitek’s TPM Control Unit comes with 9 programmable toggle switches. However, FSX’s SETTINGS only recognizes their downward actions during BUTTONS/KEYS assignments. In other words, only 50% of TPM’s programmability are used.
To fully utilize the TPM:
Open Standard.XML under C:\Users\user name\AppData\Roaming\Microsoft\FSX\Controls
Look for keyword “TPM System” inside the file
<Index>0</Index> to <Index>8</Index> represent the 9 toggle switches
The <Down>key_command</Down> line represents the downward action of the toggle switch
To add an upward action, insert an <Up>key_command</Up> line with specific command under each switch (see example below)
When done, these new switches are now shown in SETTINGS’s Buttons/Keys assignment page.
These upward switch commands are all having a prefix of “^” in front of the button names.