I enlarged this shawl by working 2 extra repeats of rows 15 to 24 of chart #3. I also added beads (somewhere north of 2400 of them), placing them on either side of the yarnovers (on the purl rows) in charts 3 and 4. The beads I used were Blue Moon Glass Seed beads (6/0) in Light Topaz, placed using the crochet hook method and a size 12 (1.00 mm) crochet hook. I bought the beads at JoAnn’s.

Blocked size: 70” x 35”
Relaxed to: 67” x 32”

Here is a good video showing how to place beads in knitting with a crochet hook:

Adding beads using a crochet hook

(Note: The woman demonstrating in the video states that she uses a size 10 / 1.00 mm crochet hook with size 6/0 seed beads. My size 10 crochet hook is not 1.00 mm but 1.30 mm. I use a size 12 crochet hook, which happens to be 1.00 mm.)