How to add content in Left Sidebar and Right Sidebar

Berry theme support 1, 2, 3 column layout.

  • No blocks in sidebar -> Full width
  • Blocks in Right Sidebar or Left Sidebar -> Two column
  • Blocks in both Right Sidebar and Left Sidebar -> Three column

Left and right sidebar regions acts as Drupal block region.

You can add content in these block regions from block settings page.
Administration >> Structure >> Blocks

admin/structure/block

You can also show / hide any block from specific pages from Visibility settings of that block.