Display Screen or Portion Thereof with a Group of Icons

The FIGURE is a front view of a display screen or portion thereof with a group of icons showing our new design.

The dash-dot-dash broken lines illustrate a display screen or portion thereof and form no part of the claimed design. The bracket shown in the FIGURE indicates a group and the bracket itself forms no part of the claimed design. The elements of the group are arranged relatively on the drawing sheet for convenience of illustration, and the placement of each element relative to another, or to the drawing sheet, forms no part of the claimed design.