[Help] Would like to know if i can save a specific shape (an arrow) on the tool pallet?
Check out this screencast for a video on creating a custom multileader. Notice the orientation of the block being used. It may take a few tries to get you arrow head the right size and orientation.
You can make the arrow into a block definition and just drag & drop the block onto whatever tool palette you want. If you want to be able to rotate it with a grip or something you would need to make it into a dynamic block with a polar parameter. It’s kind of hard to explain how to do that but I’ve gotten it working before.