I want put some through hole Pad for mounting. but I can't find info about how to put Pad on PCB, anyone can give me hint how to do it ? I need create a packages symbal?
It is not possible to add mounting holes directly in Allegro PCB Editor. You will have to add these in the schematic and give them a footprint (symbol). The footprint should simply contain a mchanical through hole Pin.
you can directly put mounting holes into PCB you have to create the package of the mounting hole and save it into the library you are using.
then from place menu you can put the mounting hole by selecting the place by part option( i dont exactly remember the option as it has been a while since i used allegro).
but the process is similar you can try it.
i hope that it will sort out your problem