Task FC estimation using basis functions in CONN

Dear Alfonso and CONN experts,

I'm running an event-related FC analyses in CONN using gPPI, and would like to convolve my task regressors with a set of basis functions rather than the canonical HRF (cf. https://www.biorxiv.org/content/biorxiv/early/2018/03/30/292045.full.pdf).

Is this possible to implement using CONN, or will I need to write some house-made scripts to accomplish this?

Any advice much appreciated!

Cheers,
Jeremy