
I want to draw the red shape, then draw something ON the red shape and then I want to add an effect to the red shape and everything on top of it.
The way I've done it here is to copy all the points in the red shape and individually weld each of them together with their copies. I can't figure out how to weld multiple points at the same time, so this takes a while for large shapes. This gives me two identical shapes on top of each other that allows me to draw anything I want onto the bottom one and add effects to the top one. The good thing about this is that if I decide to move a point of the red shape, I only have to move one point and the shape and effect is updated. If I want to add a point, I need to add a point to each shape and weld them together before I can move them as one point.
This works, but it feels very wrong and also gives some pretty big problems, like afterwards it seems to be impossible to create a shape around the red shape that has a hole for the red shape.
Is there a better way?