actionDecVertMin = new ActionVerticalMin( -6f );
actionIncHoriz = new ActionSpanWidth( 2.0f );
actionDecHoriz = new ActionSpanWidth( 0.5f );
actionZoomAllOut = new ActionScroll( SCROLL_ENTIRE_SESSION );
actionShowWindow = new ShowWindowAction( this );
imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_DOWN, InputEvent.CTRL_MASK ), "incvmax" );
amap.put( "incvmax", actionIncVertMax );
imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_UP, InputEvent.CTRL_MASK ), "decvmax" );
amap.put( "decvmax", actionDecVertMax );