I have no clue about how to configure CFE.
But Sys:Documents/X1000_CFE.pdf says on page 5,
setenv -p MENU_TIMEOUT 5
will change the timeout from ten seconds to five, and
unsetenv MENU_TIMEOUT
will restore the ten second default.
It also says that
setenv -p MENU_DEFAULT 1
lets you choose which selection will be the default, which
I thought also pertains to this discussion.
