Pattrstorage/message interpolate off

Hello,

I try to send the message "interp nameobject off" to a pattrstorage to
take off the interpolate linear by default. The object, a matrixctrl
which i want to not be interpolate is in a bpatcher and his state
don't change in the clientwindow meanwhile one in the patch directly is
abble to change is state when sending the same message (they don't own
the same name). Each of them are connect to there own autopattr object
and are readable in the client window of the pattrstorage window. I
really need to change the state interpolate from linear to off because
matrix don't keep the preset during interpolation which i need for the
one in the bpatcher.
I already send this issue maybe i wasn't clear enough, hopefully it is
now.

Thanks for any advices.
Franck

Exemple below