I belieave the command is /cleave <channel name> /leave is the command to leave a group

In the UI subsection of the Preferences window should be the option to show companion comparisons, that needs to be enabled, and your companion needs to be out for it to work.

If the Heroic/Flashpoint is 4Man, then it is not effected by how many people are in your group. But Heroics and Flashpoints that are 2Man actually say 2Man+, and if you have a third person it will be harder, and if you add a 4th it will be harder still. THat's the "Plus" part of the 2Man+....

Its a game, it's meant to be played. If you only have 6 hours a day to play, you play for 6 hours a day. For some reason people seem to think MMOs are a contest, there's no prize for most, first, fastest, because it's not a competition, it's a game, play it when you can, don't play it when you can't...