Источник:
http://www.axaptapedia.com/SysCompare_class
==============
Summary:
<div>After this modification (Ax 3) system compare dialog will compare the top layer with a layer located immediately under the top by default
\Classes\SysCompare\init
...
if (sysContextMenu.selectionCount()==1)
{
firstNode = sysContextMenu.first();
this.setTreeNode1(firstNode);
this.setCombo(_comboBox1, _baseTreeNode1);
this.setCombo(_comboBox2, _baseTreeNode1, 0, true, true);
// RPT DevTools bmi 060926 --->
//_comboBox1.selection(0);
_comboBox1.selection(max(0, _comboBox1.selection() - 1));
// RPT DevTools bmi 060926