How you use the blocks: 1. Find the top left corner where you want your "box" to be and mark down the coordinates. 2. Do the same with the bottom right corner. 3. Grab either the "Test for mouse" block or "Test for click event" block. (Depending on what you want. The "click event" block tests for clicks within the box, and the "mouse" block just tests for a mouse within the box.) 4. Put in your coordinates. (X1 and Y1 are for the top left corner, and X2 and Y2 are for the bottom right.) 5. Make it broadcast whatever you want it to. 6. Done! :D
Random fact: •It took longer to explain how this works then it did to make it. (Only 30 minutes to make, and around 1 hour to explain.)