a higher surface 104 on which the panel rests during a flipping process the panel needing to be flipped is picked up by the gripping system 13 of the attachment 10 fig1 then flipped over by pivoting the four bar mechanism 21 fig1 the flipped panel is then lowered into engagement with the higher surface 104 of the saw horse accessory 100 and released fig1 the attachment 10 is then positioned with the gripping system 13 adjacent the opposite side of the panel and the panel is captured for installation fig1 the panels are flipped one by one as needed and immediately delivered to the building and installed either in a vertical or a horizontal orientation the ability of the device to mechanize sorting and flipping of the panels is of importance for avoiding panel damage and eliminates hand labor after the panel is delivered to the building and positioned in close proximity to its final position cooperation between the operator of telehandler and a worker on the awp for installing the panel on a building will be described the worker on the awp has a better ability to check for proper alignment between the panel being installed and previously installed panels and to supervise making a joint the primary and secondary radio control units and signaling method allows the worker on the awp to take control of some positioning functions of the telehandler attachment 10 to precisely position the panel prevent damage and facilitate installation after the panel is located in place and at least some fasteners are placed to.