T46G change the Directory button to point to XML Directory

[JamesK]

I am having a small issue understanding the configuration for how to change the "Directory" softy key at the bottom from point at the regular directory and point it to the XML Directory I loaded. I know i can change it via the gui but, i want to do it via the configuration file. It looks like it is the section that has this in it:

programablekey.1.type =
programablekey.1.line =
programablekey.1.value =
programablekey.1.xml_phonebook =
programablekey.1.history_type =
programablekey.1.label =
programablekey.1.pickup_value =

I am guessing since it is the 2nd key i would change the 1 to a 2. i am just not 100% on the other fields as to what i necessary and what is not to make this happen.