NEVER? space is very often used in strategy games for pause. it is better than P because P is one in... cca.40 keys around it, and holding finger on it is weird. that is why we need to put it on space. well, pause is only function on keyboard that is alone and used often. w,a,s,d are keys together, so they can stay there. key T for screenshot is not used very often, so it can stay there too.