I prefer the following XML snippets
Code:
<ImageStyle Name="exp22_dun_plane_of_avarice_01_0" displayname="Gerion: Ark of Ascension" zonerect="-193, -624, 194, -173" heightmax="20">
<ImageFrame Source="images/maps/exp22_dun_plane_of_avarice_01_0.dds" SourceRect="0,0,436,508" />
</ImageStyle>
<ImageStyle Name="exp22_dun_plane_of_avarice_01_1" displayname="Gerion: Ark of Ascension" zonerect="-193, -624, 194, -173" heightmin="20">
<ImageFrame Source="images/maps/exp22_dun_plane_of_avarice_01_1.dds" SourceRect="0,0,436,508" />
</ImageStyle>
<ImageStyle Name="exp22_dun_plane_of_avarice_01_raid_0" displayname="Gerion: Captive Audience [Raid]" zonerect="-193, -624, 194, -173" heightmax="20">
<ImageFrame Source="images/maps/exp22_dun_plane_of_avarice_01_0.dds" SourceRect="0,0,436,508" />
</ImageStyle>
<ImageStyle Name="exp22_dun_plane_of_avarice_01_raid_1" displayname="Gerion: Captive Audience [Raid]" zonerect="-193, -624, 194, -173" heightmin="20">
<ImageFrame Source="images/maps/exp22_dun_plane_of_avarice_01_1.dds" SourceRect="0,0,436,508" />
</ImageStyle>
This reduces Solo, Heroic, and Untold into one map that shares POIs. They're effectively the same map and POIs already. Raid is a separate dungeon with the same image, so that one stays separate.