This command associates a single power supply with each letter. You select a group of letters to limit this to those letters, otherwise all LED objects are processed. If a group of letters was selected when starting PowerFlow, that group is used. This command is designed for large jobs where any particular letter will not overload the power supply.
Important note: This command can create overloaded power supplies when a letter has too many modules for the selected power supply. If you're not sure which power supply to use, and/or if the layout has a lot of variation, then use [[Add_One_Power_Supply_per_Letter_with_Auto_PS]] instead, which will automatically select the best power supply for each letter.