[Kst] Plugins of type filter

[Brisset, Nicolas]

I was wondering about something:
When a plugin has the <filter/> tag in its .xml description file, it
shows up automatically in the RMB "Filter" context menu and when invoked
in this way, leads to the automatic creation of a new curve, added to
the current plot. 
Now, my question is: is it possible for that plugin to provide more than
one vector output (for example frequencies, magnitude and phase to be
used for a transfer function) or will this confuse kst ?