resetting cascaded filtergraph

hi,

I've discovered that when you send a bunch of stored coefficients to
filtergraph~ in cascade mode, all of the 5 "filters" are set to
display mode. I want to be able to switch them back to active mode.

The only way I've managed to get near to a solution is to send
[whichfilt 1, peaknotch, whichfilt 2... etc], which for some reason
resets filters 2-5, but not filter 1.

Am I using the right message, and is there a way to re-activate
filter 1 as well?

thanks

David