#target InDesign 
var myFactor = 94.23/100; // Skalierungsfaktor 
 
var s = app.selection[0].parentStory; // ausgewählter Textabschnitt 
var g = s.groups; // Gruppen 
 
for ( i = 0; i < g.length; i++ ) 
	procGroup( g[i] ); 
	 
function procGroup( aGroup ) 
{ 
	var gb = aGroup.geometricBounds; 
	aGroup.geometricBounds = [gb[0], gb[1], gb[2], gb[1]+ (gb[3]-gb[1])*myFactor]; 
}