The ornamental design for a cover with a hole for a storagebox, as shown and described.
FIG. 1 illustrates a front view thereof; FIG. 2 illustrates a rear view
thereof; FIG. 3 illustrates a left side view thereof; FIG. 4 illustrates a
right side view thereof; and, FIG. 5 illustrates a top view thereof; FIG.
6 illustrates a bottom view thereof; FIG. 7 illustrates a perspective view
thereof; and, FIG. 8 illustrates a cross-sectional view along line 8--8 of
FIG. 1.