Explaining what Joey_Noob is saying -
There are two wait commands.
1 ) Wait (wait in frames)
2 ) Wait for Move Completion (obvious, may not be called the same thing, haven't used it in a while)
Depending on what is going on there are different choices -
1 ) If others are moving and you want them to move in different orders, but still moving at the same time, use the wait (in frames) event.
2 ) If you want one character to move after another one stops moving, use the other one.
3 ) If you don't want the main character to move at all throughout the event, in the begining of the event, use the script box command -
$game_character.lock
and at the end of the event
$game_character.unlock