Conditional Display name for save

[Cristhian_Macia]

I am trying to condition the display name of the system save button,

1. When the value of the [Unidad de negocio] column of the (User settings) section is empty, call “Iniciar Sesión”,
2. When it is not empty, call “Cerrar sesión”,
3. When you are in the remember password view it is called “Enviar”,
4. When none of the 3 above conditions are met, it is called “Guardar”.

I have tried several formulas but I have not been able to meet the 3 initial conditions without affecting the fourth