Because the current design is in default layer mode and the decal is in increased layer mode, you cannot add decal "xxx". Open Layer Setup dialog box and change the layer mode of the design to increased layers.


1、将层被设了增强模式maxlayer的pcb文件，导出“Export...”成“PowerPCB v3.5 ”或v3.5以下格式asc文件都可以；
2、接着新建一个pcb文档，然后“Import...”刚才导出的文件。