I'm right handed, but I am switching the mouse to my left hand to give my right a rest. On PC keyboards ctrl ins and ctrl del work as copy and paste, is there an equivalent on the Mac?
I thought I was asking for key switching solutions, but that's not quite what I put in the title, and the suggestions to use the existing keys has made me think. The particular problem I'm having involves the holding of the mouse making my wrist slightly bent, and the regular action of raising my hand to move the mouse in a limited area has begun to make me feel it in the wrist, a warning sign.
Regular rests can't undo over 20 years of bending, so I shall stick with the hand change. But keeping the keys unchanged might force me to leave my hand near the keyboard and not on the mouse, which might reduce the time spent bent. I shall see how it goes.
I've chosen the answer closest to my chosen action. @Arjen, your comment was closer but I can't accept it.