The Userfields plugin allows Administrators to add new fields to the Members profile. It supports the following Field types

• S = Simple Input
• N = Number Input
• T = Text Area
• C = Check Box
• D = Date
• X = Time
• Z = DateTime
• O = Select Box
• M = Multi-Select Box
• H = Horizontal Radio Buttons
• V = Vertical Radio Buttons

The fieldname is used as the key for the language resources to translate the field label
OptionsString is a pipe | delimited list of options for radio buttons and select lists. Fields can be required or private, and can be displayed individually
or all at once

Nice work.