Mosaic crochet :color change in one row (comment changer de couleur sur un rang)

I will explain here how a do to insert 2 or 3 color in one single row in Mosaic crochet. I do it this on my 1925’s blanket, an Art Deco inspiration blanket I really love. Pattern will be available soon on Ravelrly and Etsy Happy crocheting! Gaëlle