Hi tootie and welcome!
I moved your post to its own thread so it will get more attention.
The important thing is to maintain the moss pattern. You can increase as a knit (or purl if you prefer) stitch on the increase row but continue the row in the correct pattern. On the next row, work the increase into the pattern. Often the edge sts are part of a seam and won't show. There's a nice method shown here for neat increases one stitch in from the edge which maintains the pattern.