Special dress spheres

does anyone know how to use the special dress spheres, i have Yuna's and Rikku's but i accedently skipped the tutorial for them:)

you need to switch to all the dress spheres on one grid then you bring up the spheregrid press R1 and select the special dress sphere. There should be a garment grid with only two slots so you can bring up the special dress sphere easily.

Thanks:)

how can you switch garment ghrid??

Select 'Equip', then 'Garment Grid' on the Menu Screen to change grids.