I would like [garment and area] altered to provide [a decorative appearance only / a usable pocket for everyday small items, with approximate dimensions]. After inspecting it, would the result be a decorative flap or outline, or a usable opening and pocket bag? What opening positions and scope are achievable? If the existing area appears sewn shut, please first assess its construction rather than assuming it can be opened. Please explain anything that cannot be achieved and wait for my confirmation before altering it.