Nice! You might want to add an option to specify the index so that you can build crossfade tables for each group more quickly. This is a screenshot of three linear XFades with different indexes:
0_1488133216539_Bildschirmfoto 2017-02-26 um 19.18.42.png
EDIT: Nevermind, just realized you are doing this already on different modulators.
BTW, did you know you can copy & paste tables? Just select one (so it gets outlined), Ctrl + C, select another and press Ctrl + V.
You could add a dummy table to your script which can then just be used as copy source for all kinds of modulators.