Druid summon spells

[steverimmer]

There is something I'd like to see implemented, its something which does exist in PnP but may not be possible in NWN...I don't know. 
  Basically in PnP a druid can sacrifice one of his spells for an animal summon spell, in the same way a cleric can sacrifice one of their spells for a heal spell.  I think this would be a great implementation for druids who get less spells than clerics anyway and it fits with the class very well too.
  The only problem is I'm not actually sure its possible but I'd like to see it if it is

[Phanixis]

That would be cool but I have never seen in implemented on any NWN server, including one that claims to be updated to 3.5 rules.  I think the problem is that it represents a fundamental modifications to the user interface and game mechanics, rather than just replacing a spell here or their.  It would be fantastic if they could implement it though.