- layout_block_configure_form in core/
modules/ layout/ layout.admin.inc - Form callback; Add or edit a block within a layout.
- layout_flexible_template_configure_form in core/
modules/ layout/ layout.flexible.inc - Form to manage adding and removing rows to a flexible template.
- layout_flexible_template_edit_row_form in core/
modules/ layout/ layout.flexible.inc - Form to add or edit a row on a flexible template.
- layout_flexible_template_region_style_select in core/
modules/ layout/ layout.flexible.inc - Form to select the region widths for a flexible template.
- layout_menu_item_form in core/
modules/ layout/ layout.admin.inc - Form callback; Configure a layout menu item.
- layout_settings_form in core/
modules/ layout/ layout.admin.inc - Render the settings form for layout.