When you copy a module, is it possible yo paste it into the exact module order it’s meant to be? It seems like it always ends up last in the order.
One quick workaround for this is that after you paste a new module into your sigfile, it will indeed be added last in the order. If you hold shift then click and drag your newly pasted module to hover over a second module, you can re-order it to be before the second module by hovering over the left side of the second module or after the second module by hovering over the right side. Half of the second module will highlight on the right or left, depending on where your mouse is for the reordering. Let go of the mouse click, and your module will now be re-ordered.