This is my first post so bear with me. I am animating some lines (growing lines) in AE using a solid + stroke effect. The ends of the lines are being created with a rounded cap, however I wish to use the square butt cap option. I am aware that this option is available for lines drawn with the pen tool on a shape layer, however under these settings I am unable to access the start and end keyframing options (to my knowledge). Does anyone have any tips on how to resolve my issue?? Alternatively is there anyone that has ideas about creating my desired effect using other tools (I simply need pen tool lines [they cannot be brush strokes] that have access to start/end keyframes and have square caps)? help is very much appreciated.