Hi there - a further update for Ed Greek.
Horoscope-Classical-Ed Greek Horoscope: v.17.46 - includes valens solar return, updated help
From the Help:
Solar Return (according to Valens)
Valens' method of solar returns is described in Book 5 of the Anthology. Valens combines the planetary positions for the date of the solar return, with the mundane positions (houses and angles) for the date on which the moon returns to its natal whole degree. The lunar return is defined as the moment the Moon enters the whole degree in which it is located at birth. So, for example, if the natal moon is at 23.5 degrees of a sign, the lunar return is calculated for the moment the Moon returns to 23.0 degrees of that sign.
House cusps are calculated for the users' default setting. The lot of fortune and daimon are calculated using the solar return positions of the Sun and the Moon, and the ascendant for the lunar return. The calculation of the lots is determined by the sect of the solar return chart, rather than the position of the Sun in relation to the angles of the lunar return.