typo3 pass along footer

index.html

<main>
  <f:format.raw>
    {footer_col1}
  </f:format.raw>
</main>
<footer>
  <f:format.raw>
    {footer_col1}
  </f:format.raw>
  <f:format.raw>
    {footer_col2}
  </f:format.raw>
  <f:format.raw>
    {footer_col3}
  </f:format.raw>
  <f:format.raw>
    {footer_col4}
  </f:format.raw>
</footer>

Page.ts

mod.web_layout.BackendLayouts {

  nimm_mich  {
    title = Nimm mich!
    icon = EXT:example_extension/Resources/Public/Images/BackendLayouts/default.gif
    config {
      backend_layout {
        colCount = 4
        rowCount = 2
        rows {
          1 {
            columns {
              1 {
                name = Hauptinhalt
                colspan = 4
                colPos = 0
              }
            }
          }
          2 {
            columns {
              1 {
                name = Spalte 1
                colPos = 1
                allowed {
                  CType = text
                }
              }
              2 {
                name = Spalte 2
                colPos = 2
                allowed {
                  CType = text
                }
              }
              3 {
                name = Spalte 3
                colPos = 3
                allowed {
                  CType = text
                }
              }
              4 {
                name = Spalte 4
                colPos = 4
                allowed {
                  CType = text
                }
              }
            }
          }
        }
      }
    }
  }
}

setup.ts

# Define template
page = PAGE
page.10 = FLUIDTEMPLATE
page.10 {
  file = EXT:example_extension/Resources/Private/Templates/FluidTemplate/index.html
  variables {
    # Backend content variable definition for index.html template generated by TTT
    content_body = CONTENT
    content_body.table = tt_content
    content_body.select {
      orderBy = sorting
      where = colPos = 0
    }

    footer_col1 = CONTENT
    footer_col1.table = tt_content
    footer_col1.select {
      orderBy = sorting
      where = colPos = 1
    }

    footer_col2 = CONTENT
    footer_col2.table = tt_content
    footer_col2.select {
      orderBy = sorting
      where = colPos = 2
    }

    footer_col3 = CONTENT
    footer_col3.table = tt_content
    footer_col3.select {
      orderBy = sorting
      where = colPos = 3
    }


    footer_col4 = CONTENT
    footer_co4l.table = tt_content
    footer_co4l.select {
      orderBy = sorting
      where = colPos = 4
    }
  }
}


#passes along the footer content from the root page
  page.10.variables.footer_col1.slide = -1
  page.10.variables.footer_col2.slide = -1
  page.10.variables.footer_col3.slide = -1
  page.10.variables.footer_col4.slide = -1