Cthulhu: Parameter for Graph pattern length?

Am I overlooking the parameter for Graph pattern length, or is it only editable in Cthulhu's GUI? If the latter, what's the likelihood of said parameter being added to future versions of Cthulhu? It would be nice to be able to modulate Graph pattern length.

You can alt-drag the arp pattern between the A-L locations and have multiple patterns with different lengths, and then switch between these with the lowest octave of MIDI notes.

Works for me! Thanks Steve.