jf-roku/components/options/data-choices.xml

<?xml version="1.0" encoding="utf-8" ?>
<component name="OptionsData" extends="ContentNode">
  <interface>
    <field id="base_title" type="string" />
    <field id="choices" type="stringarray" />
    <field id="config_key" type="string" />
    <field id="value_index" type="integer" />
    <field id="value" type="string" onChange="update_title" />
    <function name="press" />
  </interface>
  <script type="text/brightscript" uri="pkg:/source/config.brs" />
  <script type="text/brightscript">
  <![CDATA[
  sub init()
    m.top.value_index = 0
  end sub

  sub update_title()
    for i=0 to m.top.choices.count() - 1
      if m.top.choices[i] = m.top.value
        m.top.value_index = i
        exit for
      end if
    end for
    m.top.title = m.top.base_title + ": " + m.top.value
  end sub

  sub press()
    max_opt = m.top.choices.count()
    i = m.top.value_index + 1
    while i >= max_opt
      i = i - max_opt
    end while

    m.top.value_index = i
    m.top.value = m.top.choices[m.top.value_index]

    set_user_setting(m.top.config_key, m.top.value)
  end sub
  ]]>
  </script>
</component>