There is no quick way to filter forms to see which forms have been escalated or to see which form it was escalated into. This also applies to related forms. Suggest having an icon next to form prefix in two separate columns (Escalated & Related) that will identify forms that have been either escalated or has related forms. When you hover cursor on the icons it will generate a pop-up window listing the other forms that can then be selected to take you directly to those forms.