I think the current Grouping Tool is almost useless. Soimetimes it's hard to group up with people, sometimes we don't group up with players we're looking for. And there's a bug that whenever I start searching for members and return to game and open the group window again, it magically switches back to the first dungeon on the list. Anyway, maybe you'll agree with me that the Grouping Tool is useless. I'd rather ask in guild or zone chat. However, as anything else, the Grouping Tool could be improved or revamped. Here are my ideas:
Sentence the current Grouping Tool to death. Make a new one like a name list. Whenever players want to run dungeons or trials or anything, sign up on the list under the corresponding tag and wait for group. The name list displays players' character names, levels, classes and prefered roles. Players who want to make a group can check the name list and send invites. If you don't want to wait you can look up the name list and invite people. With a tool like this, it's easier for us to group up with others and we have higher chance to group with the people we prefer. As you know, some people prefer to have a DK tank or a Templar healer in their group, and some people want to group with high level players, etc. You just need to pick the right guys you want to group with, or chat with him before grouping. I think it works better than the Grouping Tool we have now.