Here’s a quick reference, for anybody who has the Sony HVL-F56AM/Minolta 5600 HS(D) and Sony HVL-F58AM flash.

To enter the Custom Function menu on the HVL-F56AM:

– hold down the Select button for 3 seconds
– press Select to cycle through the Custom Functions
– press – or + to change the options of each Custom Function

The Custom Functions are:
1) Wireless channel WL CH-1/CH-2/CH-3/CH-4
2) Flash range units m/ft
3) Time to auto power off 4 minutes/15 minutes/60 minutes/– (none)
4) Time to auto power off when using wireless flash 60 minutes/– (none)
5) Recording modes in which manual flash and multiple flash may be set M/PASM

Those in bold are my recommendations.

To enter the Custom Function menu on the HVL-F58AM:

– hold down the Fn button for 3 seconds
– press left or right to cycle through the Custom Functions
– press up or down to change the options of each Custom Function

The Custom Functions are:
C01 – HSS on or off
C02 – Channel 1 or 2 or 3 or 4
C03 – CTRL1 (CTRL+ to trigger F42/F58 on A700/A850/A900) or CTRL2 (CTRL to trigger F36/F56/F42/F58 but only on A850/A900)
C04 – PASM or M (means you can use Manual Power flash even if your camera body is not on Manual Exposure mode)
C05 – TestM (strobe for 4 seconds when you press Test) or Test3 (3 strobes) or Test1 (one strobe)
C06 – Power Saving 30 minutes, 3 minutes, 0.5 minutes or off
C07 – Power Saving when in Wireless 60 minutes or off