Sorry, no chance to change the setting in the CSPPC bootmenu from the WB.
You might be able to power down unit 0 with an motor off command, but you won`t be able to mount unit 2. If you switch off a unit in the CSPPC bootmenu is is as if you had physically removed it.
You don`t have by chance a CVPPC or a G-Rrex with a Voodoo3 in there ? That would display the bootmenu also.