I see it. But how do I choose any of them? I see the list, but there is no button to select them. I can get the cursus on them an click on them, but then still in the receiving tab the old address is listed. How can I select any of the addresses in the list?
Right click any address and select "Copy Address" or just select the one you want and press Ctrl + C.
So just to be sure: I can copy and paste any of the addresses in the list under the tab "used" ?
And then if I give that address to the person sending me the coins, it will arrive with me?
Yes and Yes. You can use them as many times as you want.
So for this it does not have to appear first int he "receive" tab? Because I just cannot find out how to drag an address from the list to the receive tab
It doesn't have to. The receive tab will only show you a new address after every transaction to help you not reuse your addresses. But all addresses can be reused as many times as you want and there is no problems on doing that. You can either use the address found in the "receive" tab or any other from the list whenever you want.