Modify Existing PCB Design (Footprints, Flow and 3~5 Components Addition)

PCB (3 Parts of single system) designed already in KiCAD. Required some modification in the existing design. Modifications related to Footprints of components, addition of 3~5 components and Relocating some components within the PCB. KiCAD design project files will be shared.
It will be hardly 1~2 Hour job for a PCB designer.