How to develop a module simulation with buttons in proteus ?

[eagle1109]

Hi,

I want to develop a d-pad module in proteus, I know how to design the sub-circuit for the module in the child-sheet for the module outputs but I don't know how to program the buttons of the UI of the module, I think there are 2 ways of programming those buttons:

1. Write the commands for those buttons in the device properties:

I don't know how to understand those coordinates.

I know that

{A1=SQUARE,0300,-300,300}

that square is the square shape of the module, but I don't know how to interpret those numbers.

2. Develop a sub-circuit in the child-sheet:

As in the picture I know that the outputs of the child-sheet design are connected to the same ones on the schematic-sheet but I want to connect the push buttons of the child-sheet to the green ones on the schematic-sheet.