hold click on a wire or logic gate use q and e to turn if you hold something you can press x to delete (!!!only if you already hold it!!!)
If you dont get it read this here: the red things are wires 1st yellow is a toggle or flip flop 2nd yellow is an and gate (you have to put the second input on the side) 3rd yellow is a or gate (same for and input on the side) 4th yellow is a xor gate (also input sides) 1st grey is a receiver it receives a message from the 2nd grey one 2nd grey is a broadcaster if you wire to it it broadcasts to the receiver the blue is a button the tiny purple gives a small delay the big purple gives a big delay the black thing is a light/lamp if you still dont get it here is a minecraft tutorial on logic gates: