Eat hot or cold or somewhere in between which is my preference.
Divide the pastry any way you wish to make the size turnover you want.
Yes you can used tinned pie apple.
Mix and match put in raspberries or blueberries with your apple.
Cloves or mixed spice is always nice in apple but I don't put spices in if I use berries.
Use another fruit of your choice.
Yes you can freeze the cooked product but I don't, my preference is to eat within the hour.