You have several options available. Coping is the item that attaches to the top of your swimming pool panel and it holds the liner in place. With the proper coping used, it will be easy to change your liner in the future without removing any coping or pool deck.
Receptor coping mounts on top of your swimming pool panel and is designed to pour concrete into. This type of coping will give you a white edge look around your pool where it meets your deck. You can easily install a new liner with this type of coping. Most types are manufactured from aluminum and have been finished with baked on white paint.
Side mount coping will attach to the top inside wall of your swimming pool panel and you will not see a white edge look around the pool. This type of coping is used a lot when you want to install bull nose brick or stone around the edge of your pool. Your liner will be easy to change.
Top mount coping is used when you want to pour a Cantilever Deck around the edge of your pool. You will not see a white edge around your pool. You also will need to use Cantilever Coping Forms with this type of coping. This is a Styrofoam form that will attach to your liner temporarily in order to pour the concrete for the cantilever decking. This form is then removed. Your liner will still be easy to change.
Discuss your options with your pool and decking contractors to make sure you choose the right style for your installation.