Recording MPE live with mouse Waveform 11

[richfor]

I'm using a Lightpad block with Waveform 11 and trying to record MPE on the fly.
but I find if I use my mouse to control the plugin from the GUI whilst I'm playing notes in from my single Lightpad block, the MPE gestures are not recorded.

I have MPE activated on the record channel, and MPE gestures work from the Lightpad as a midi input device, but not from the mouse.

With something like Cubase, this type of thing would have to be done as recording automation, rather than as midi information, and that would be fine if I could do that with Waveform 11.
Is it possible or am I asking too much?