Z3TA mod matrix: can an envelope and lfo co-exist?

In Z3TA 2, I've tried to set up an envelope and an LFO to both effect the cutoff of both filters. The envelope is just to give it a little wah during the attack, then the LFO is set to the mod wheel to give it some wobble as needed. The problem is that the LFO seems to override the EG every time. Z3TA will use the LFO based on the modwheel's position, but while the LFO mod is active, it completely ignores the EG. Am I just missing something here?