I selected my nurbs square, selected my cv curve, then extruded with the options in the screengrab below. It successfully extrudes the square. But how can I animate the extrusion? It's easy with a circle because it's a single line (via INPUTS > subCurve2 > Max Value), but with a square, I'm only able to animate each line (wall) separately. Is there a way to group the lines or another simple solution out there? Please help! Thank you in advance.
