Roman pleats can be sewed with this sewing syncronisation.

Function:
First of all adjust the parallelism between the guide plate and the needle, on the provided measuring tape. (1)
According to the length of the fabric, block the clamp (2).
The tissue will be positioned beneath the conduct bar and signed through an indication, on the left and on the right. After that, just align the fabric and lay it upon the guide. Now you can start sewing.