[Elecraft] P3 Programmers Reference?

[Joe Subich, W4TV]

When/where can we expect the P3 Programmers Reference?
It will be handy (necessary?) in creating macros for the
function keys (e.g., set span to a predefined value) or
control the P3 from external (e.g., logging) software.

73,

    ... Joe, W4TV