I would advise against using any fusable anywhere on a Kilt that is supposed to move.

If there is one thing I have learned in the six years I've been making Kilts it is that it is the movement of the Kilt that is the single most important thing to a Kilt looking good.

Fusable interfacing or hemming stuff restricts the movement of the fabric.
I even go so far as when I am edge stitching the Pleats I back off both the bobbin and top tension of my machines to allow the stitches to give a bit of freedom to the fabric and not bind layers too tightly together.

The only thing I use fusable for is to hold layers together and prevent them from slipping out of alignment until I stitch them.
And then only in places that are under the waistband or inside a pocket construction where it completely hidden and will not effect the movement of the fabric.