[PD] open a subpatch from an abstraction

[husk]

Hi list,
I'm working with abstraction and subpatch, I have a problem and I'm 
unsatisfied with my solution.
My problem: I have a gop abstraction instantiated tree times. In the 
abstraction there is a subpatch that I want to open/close through a 
toggle button connected to a pd-subpatch vis $1 msg sent to the same 
abstraction. It opens/close the subpatch for every instantiated 
abstraction (in this case thrice) and not just the subpatch from my 
abstraction. There is a way to do that? What I'm looking for is a way to 
include $0 in dynamic message, or something like that.
An example patch is attached.

thanks
husk
-------------- next part --------------
A non-text attachment was scrubbed...
Name: openclose.pd
Type: text/x-puredata
Size: 106 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20091016/276cef60/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: abstraction.pd
Type: text/x-puredata
Size: 294 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20091016/276cef60/attachment-0001.bin>