Above is the world download for my latest multifloor elevator

It is a closed-cabin elevator that supports up to 15 floors spaced any even number of blocks apart (at least 4 blocks apart).
The floors can be spaced differently from one floor to the next.
The elevator includes a calling system and is 100% spam-proof.
The cabin moves 2 blocks every 3 redstone ticks.
x and z dimensions: 16 by 19.

Credit to JL2579 for the idea for the cabin lifting method. Go check out his YouTube channel!