How to change the position of perspective camera vertically?

Some camera movements.

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See in the Collection of examples from discourse.threejs.org 218
(https://hofk.de/main/discourse.threejs/2018/index2018.html)

HumanEyesCamera - @prisoner849, hofk

function move( ) {
	
	if ( keyCode === 87 ) { if ( withinBorders( moveForward ) ) moveForward( camHolder ) }	// w fast vorward
	if ( keyCode === 83 ) { if ( withinBorders( moveBack ) ) moveBack( camHolder ) }		// s backward a little slower
	if ( keyCode === 65 ) { if ( withinBorders( moveLeft ) ) moveLeft( camHolder ) }		// a slowly leftwards
	if ( keyCode === 68 ) { if ( withinBorders( moveRight ) ) moveRight( camHolder ) }		// d slowly rightwards
		
	if ( keyCode === 76 ) { turnLeft( camHolder ) }		// l turn to the left
	if ( keyCode === 82 ) { turnRight( camHolder ) }	// r turn to the right
		
	if ( keyCode === 84 ) { goTop( camHolder ) }	 	// t upstretch
	if ( keyCode === 66 ) { goBottom( camHolder ) }	 	// b bend down
	
	if ( keyCode === 38 ) { lookUp( camera ) }	 		// up arrow, looking higher		-> camera
	if ( keyCode === 40 ) { lookDown( camera ) }		// down arrow, looking deeper	-> camera
}

and see Circular control used for walkable areas control