From a stud/partition wall I have cut out rectangles of plasterboard to access behind. These rectangles are about 60cm wide x 50cm long. CLS timber is only available to screw to on one of the four edges. What plasterboard adhesive/glue should I use to stick the cut-out plasterboard back to the existing plasterboard? Maybe this plasterboard adhesive would work: https://www.screwfix.com/p/no-nonsense-plasterboard-adhesive-10kg/168rt?

