Grapping & 'Moveable'
There are two ways in which a character can assist another to move.
Grappled
The is where a character is not able to help move themselves; such as being Unconscious. Two other characters need to be touching that character in order to move them.
This is restricted to walking pace/
Moveable
This allows a single person to assist a character to walk, who is conscious but injured, such as having your legs on zero Hit Points or having been Roused by a First Aider.
Movement is limited to walking pace for the length of time they are moveable.