They were [Hack], [Inventory], [Eagle eye], and [Load]. Funnily enough, they were basically placeholders for the abilities of {Code}, {Store}, {Perceive}, and {Carry}.
Similar to how Liv's {Fates} were all combined into [Tank], these four new combinations allowed me to use the {Fates} that create them together or separately.
[Hack] allowed me to use both {Connect} and {Shutdown}, as I needed to {Connect} to an electronic device before I could use {Shutdown} anyway nothing much changed.
{Code} and {Program}, while still in the {Code} family, functioned differently, so they could not be added to [Hack].
[Inventory] had {Store} and {Stock} and their more advanced counterparts {Retrieve} and {Withdraw}. Basically, instead of emphasizing which set of versions to use, I could just say [Inventory], and the combination skill would choose for me.