deRegUserTriggers

I used deRegUserTriggers for "schematic" view type, but my trigger functions need some additional data which are available at the deRegUserTriggers call.

My question is how can I access the additional data from the trigger function?

Another question is: Can I put some extended (userspecific) context data to a schematic view?

I tried: (putprop deGetContext(window(4)) "some data" 'myUserCtxData) but it does not work :(

Thanks for help,

Michael