The vpc_gpio_init() function is now complete (for the planned features). The last nuisance (Set or Reset the initial Output level, according to the user choices) was solved and correct SPL code is generated (knock on the wood table).

Both values of the “GPIO Output Level” combobox are reflected in the code where is the case.

BTW, the green pins are click-able. Is the only way to modify (re-edit) the settings of a pin without changing its function.