Can someone please explain to me how I can make 1 lever open/close multiple pistons???
If so, I really appreciate it!
Try putting dust one block higher than you think you need it. Pistons will receive power from any block touching them that has redstone dust/repeaters going directly into the block, or dust on top of the block.
So a row of pistons could be powered with a block at their level with dust on top in a line up to the limit your signal travels from the lever/last repeater.