MacroQuest (or MQ2) is a third party software that allows you to send commands from one of your EverQuest clients to other clients. It can be used to send command to your party to follow you, heal a target, attack a target or sit and med up.
E3 is, in simple words, a sophisticated macro that uses MacroQuest and allows you to configure what spells and abilities your characters should use. Instead of using a regular MacroQuest command to order one of your party members to cast a heal, you can configure that party member and tell it whom they should heal, at what health percentage and with which spell. The original version of E3 is still working, but no longer maintained.
E3N or E3Next is a newer version of E3, which has MacroQuest included. E3Next supports EQ Might specific features thanks to our community, especially Riker and Rekka! You can find the latest version in our discord channel mq-e3-general. Follow the instruction of the pinned message from Warcrime in the channel.
Alternatively, for new E3N installs, start here: https://github.com/RekkasGit/E3Next/wiki/1)-Getting-started-EMU-32bit
Default E3N Slash commands can be found here: https://github.com/RekkasGit/E3Next/wiki/2)-Slash-Commands
Once installed and your ini files per character configured, you can control your team from one character.
Above links have all the detailed information you need. Some of the most important slash commands are below as examples.
To follow and stop following you:
/chaseme
/chaseme off
or:
/followme
/followoff
To attack your target and stop attacking:
/assistme
/backoff