Option A - lamellae come in the opposite direction from the operating ropes
Option B - standard - the lamellae come to the side of the operating ropes, If a different option is not chosen, then it will be done that way!
Option C - curtain - the lamellae extend from the center of the curtain rail to the two sides
Option D - Both Option B can be used to connect larger widths exceeding the maximum length of the package, for instance. if the width is 500cm is in the form, then enter the width of 2x250 cm and select this option