4 ms·The scroll wheel can be clicked as a middle mouse button on most mice.by awood 14y agoThe scroll wheel can be clicked as a middle mouse button on most mice.pdw 14y agoThat's true, but it's very awkward. In Acme, the middle button means 'execute command'. You need to press it constantly, often in combination with other buttons. A clickable scroll wheel is not good enough.srik 14y agoMaybe a mouse with touch scroll