diff --git a/README.md b/README.md
index 391c3f8..da8433d 100644
--- a/README.md
+++ b/README.md
@@ -66,25 +66,31 @@ require("dapui").setup({
   -- Expand lines larger than the window
   -- Requires >= 0.7
   expand_lines = vim.fn.has("nvim-0.7"),
-  sidebar = {
-    -- You can change the order of elements in the sidebar
-    elements = {
-      -- Provide as ID strings or tables with "id" and "size" keys
-      {
-        id = "scopes",
-        size = 0.25, -- Can be float or integer > 1
+  -- Layouts define sections of the screen to place windows.
+  -- The position can be "left", "right", "top" or "bottom".
+  -- The size specifies the height/width depending on position.
+  -- Elements are the elements shown in the layout (in order).
+  -- Layouts are opened in order so that earlier layouts take priority in window sizing.
+  layouts = {
+    {
+      elements = {
+      -- Elements can be strings or table with id and size keys.
+        { id = "scopes", size = 0.25 },
+        "breakpoints",
+        "stacks",
+        "watches",
       },
-      { id = "breakpoints", size = 0.25 },
-      { id = "stacks", size = 0.25 },
-      { id = "watches", size = 00.25 },
+      size = 40,
+      position = "left",
+    },
+    {
+      elements = {
+        "repl",
+        "console",
+      },
+      size = 10,
+      position = "bottom",
     },
-    size = 40,
-    position = "left", -- Can be "left", "right", "top", "bottom"
-  },
-  tray = {
-    elements = { "repl", "console" },
-    size = 10,
-    position = "bottom", -- Can be "left", "right", "top", "bottom"
   },
   floating = {
     max_height = nil, -- These can be integers or a float between 0 and 1.
@@ -95,7 +101,7 @@ require("dapui").setup({
     },
   },
   windows = { indent = 1 },
-  render = { 
+  render = {
     max_type_length = nil, -- Can be integer or nil.
   }
 })
diff --git a/lua/dapui/config/init.lua b/lua/dapui/config/init.lua
index 65ffa73..816185d 100644
--- a/lua/dapui/config/init.lua
+++ b/lua/dapui/config/init.lua
@@ -35,25 +35,30 @@ local default_config = {
     [M.actions.TOGGLE] = "t",
   },
   expand_lines = vim.fn.has("nvim-0.7") == 1,
-  sidebar = {
-    -- You can change the order of elements in the sidebar
-    elements = {
-      -- Provide IDs as strings or tables with "id" and "size" keys
-      {
-        id = M.elements.SCOPES,
-        size = 0.25, -- Can be float or integer > 1
+  layouts = {
+    {
+      -- You can change the order of elements in the sidebar
+      elements = {
+        -- Provide IDs as strings or tables with "id" and "size" keys
+        {
+          id = M.elements.SCOPES,
+          size = 0.25, -- Can be float or integer > 1
+        },
+        { id = M.elements.BREAKPOINTS, size = 0.25 },
+        { id = M.elements.STACKS, size = 0.25 },
+        { id = M.elements.WATCHES, size = 0.25 },
       },
-      { id = M.elements.BREAKPOINTS, size = 0.25 },
-      { id = M.elements.STACKS, size = 0.25 },
-      { id = M.elements.WATCHES, size = 0.25 },
+      size = 40,
+      position = "left", -- Can be "left" or "right"
+    },
+    {
+      elements = {
+        M.elements.REPL,
+        M.elements.CONSOLE,
+      },
+      size = 10,
+      position = "bottom", -- Can be "bottom" or "top"
     },
-    size = 40,
-    position = "left", -- Can be "left" or "right"
-  },
-  tray = {
-    elements = { M.elements.REPL, M.elements.CONSOLE },
-    size = 10,
-    position = "bottom", -- Can be "bottom" or "top"
   },
   floating = {
     max_height = nil, -- These can be integers or a float between 0 and 1.
@@ -74,6 +79,11 @@ local user_config = {}
 local function fill_elements(area)
   area = vim.deepcopy(area)
   local filled = {}
+  vim.validate({
+    size = { area.size, "number" },
+    elements = { area.elements, "table" },
+    position = { area.position, "string" },
+  })
   for i, element in ipairs(area.elements) do
     if type(element) == "string" then
       filled[i] = { id = element, size = 1 / #area.elements }
@@ -91,7 +101,12 @@ local function dep_warning(message)
   vim.schedule(function()
     if not dep_warnings[message] then
       dep_warnings[message] = true
-      vim.notify(message, "warn", { title = "nvim-dap-ui" })
+      vim.notify(message, "warn", {
+        title = "nvim-dap-ui",
+        on_open = function(win)
+          vim.api.nvim_buf_set_option(vim.api.nvim_win_get_buf(win), "filetype", "markdown")
+        end,
+      })
     end
   end)
 end
@@ -105,11 +120,46 @@ local function fill_mappings(mappings)
 end
 
 function M.setup(config)
-  local filled = vim.tbl_deep_extend("keep", config or {}, default_config)
+  config = config or {}
+  local filled = vim.tbl_deep_extend("keep", config, default_config)
+
+  if config.sidebar or config.tray then
+    dep_warning([[The 'sidebar' and 'tray' options are deprecated. Please use 'layouts' instead.
+To replicate previous default behaviour, provide the following
+```lua
+require('dapui').setup(
+  layouts = {
+    {
+      elements = {
+        'scopes',
+        'breakpoints',
+        'stacks',
+        'watches',
+      },
+      size = 40,
+      position = 'left',
+    },
+    {
+      elements = {
+        'repl',
+        'console',
+      },
+      size = 10,
+      position = 'bottom',
+    },
+  },
+)
+```]])
+  end
+
+  if config.layouts then
+    filled.layouts = config.layouts
+  end
   filled.mappings = fill_mappings(filled.mappings)
   filled.floating.mappings = fill_mappings(filled.floating.mappings)
-  filled.sidebar = fill_elements(filled.sidebar)
-  filled.tray = fill_elements(filled.tray)
+  for i, layout in ipairs(filled.layouts) do
+    filled.layouts[i] = fill_elements(layout)
+  end
 
   user_config = filled
   require("dapui.config.highlights").setup()
@@ -131,6 +181,10 @@ function M.tray()
   return user_config.tray
 end
 
+function M.layouts()
+  return user_config.layouts
+end
+
 function M.floating()
   return user_config.floating
 end
diff --git a/lua/dapui/init.lua b/lua/dapui/init.lua
index 866d67c..2df75fa 100644
--- a/lua/dapui/init.lua
+++ b/lua/dapui/init.lua
@@ -135,63 +135,97 @@ function dapui.setup(user_config)
   end)
 end
 
----Close either or both the tray and sidebar
----@param component string: "tray" or "sidebar"
-function dapui.close(component)
-  windows.tray:update_sizes()
-  windows.sidebar:update_sizes()
-  if not component or component == "tray" then
-    windows.tray:update_sizes()
-    windows.tray:close()
-  end
-  if not component or component == "sidebar" then
-    windows.sidebar:update_sizes()
-    windows.sidebar:close()
+---Close one or all of the window layouts
+---@param layout number|nil: Index of layout in config
+function dapui.close(layout)
+  for _, win_layout in ipairs(windows.layouts) do
+    win_layout:update_sizes()
+  end
+  for i, win_layout in ipairs(windows.layouts) do
+    if not layout or layout == i then
+      win_layout:update_sizes()
+      win_layout:close()
+    end
+  end
+end
+
+---@generic T
+---@param list T[]
+---@return fun(): number, T
+local function reverse(list)
+  local i = #list + 1
+  return function()
+    i = i - 1
+    if i <= 0 then
+      return nil
+    end
+    return i, list[i]
   end
 end
 
----Open either or both the tray and sidebar
----@param component string: "tray" or "sidebar"
-function dapui.open(component)
-  windows.tray:update_sizes()
-  windows.sidebar:update_sizes()
-  local open_sidebar = false
-  if component == "tray" and windows.sidebar:is_open() then
-    windows.sidebar:close()
-    open_sidebar = true
+---Open one or all of the window layouts
+---@param layout number|nil: Index of layout in config
+function dapui.open(layout)
+  for _, win_layout in ipairs(windows.layouts) do
+    win_layout:update_sizes()
   end
-  if not component or component == "tray" then
-    windows.tray:open()
+  local closed = {}
+  if layout then
+    for i = 1, (layout and layout - 1) or #windows.layouts, 1 do
+      if windows.layouts[i]:is_open() then
+        closed[#closed + 1] = i
+        windows.layouts[i]:close()
+      end
+    end
+  end
+
+  for i, win_layout in reverse(windows.layouts) do
+    if not layout or layout == i then
+      win_layout:open()
+    end
   end
-  if not component or component == "sidebar" then
-    windows.sidebar:open()
+
+  if #closed > 0 then
+    for _, i in ipairs(closed) do
+      windows.layouts[i]:open()
+    end
   end
-  if open_sidebar then
-    windows.sidebar:open()
+
+  for _, win_layout in ipairs(windows.layouts) do
+    win_layout:resize()
   end
-  windows.tray:resize()
 end
 
----Toggle either or both the tray and sidebar
----@param component string: "tray" or "sidebar"
-function dapui.toggle(component)
-  windows.tray:update_sizes()
-  windows.sidebar:update_sizes()
-  local open_sidebar = false
-  if component == "tray" and windows.sidebar:is_open() then
-    windows.sidebar:close()
-    open_sidebar = true
+---Toggle one or all of the window layouts.
+---@param layout number|nil: Index of layout in config
+function dapui.toggle(layout)
+  for _, win_layout in reverse(windows.layouts) do
+    win_layout:update_sizes()
   end
-  if not component or component == "tray" then
-    windows.tray:toggle()
+
+  local closed = {}
+  if layout then
+    for i = 1, (layout and layout - 1) or #windows.layouts, 1 do
+      if windows.layouts[i]:is_open() then
+        closed[#closed + 1] = i
+        windows.layouts[i]:close()
+      end
+    end
   end
-  if not component or component == "sidebar" then
-    windows.sidebar:toggle()
+
+  for i, win_layout in reverse(windows.layouts) do
+    if not layout or layout == i then
+      win_layout:toggle()
+    end
   end
-  if open_sidebar then
-    windows.sidebar:open()
+
+  for _, i in reverse(closed) do
+    windows.layouts[i]:open()
+  end
+
+  for _, win_layout in ipairs(windows.layouts) do
+    win_layout:resize()
   end
-  windows.tray:resize()
 end
 
 return dapui
diff --git a/lua/dapui/windows/init.lua b/lua/dapui/windows/init.lua
index 327f68b..50407ca 100644
--- a/lua/dapui/windows/init.lua
+++ b/lua/dapui/windows/init.lua
@@ -8,10 +8,8 @@ local WindowLayout = require("dapui.windows.layout")
 
 local float_windows = {}
 
----@type dapui.WindowLayout
-M.sidebar = nil
----@type dapui.WindowLayout
-M.tray = nil
+---@type dapui.WindowLayout[]
+M.layouts = {}
 
 local function register_elements(elements)
   local win_configs = {}
@@ -27,7 +25,7 @@ local function register_elements(elements)
   return win_configs
 end
 
-local function tray_layout(height, position, win_configs)
+local function horizontal_layout(height, position, win_configs)
   local open_cmd = position == "top" and "topleft" or "botright"
 
   local function open_tray_win(index)
@@ -46,7 +44,7 @@ local function tray_layout(height, position, win_configs)
   })
 end
 
-local function side_layout(width, position, win_configs)
+local function vertical_layout(width, position, win_configs)
   local open_cmd = position == "left" and "topleft" or "botright"
   local function open_side_win(index)
     vim.cmd(index == 1 and open_cmd .. " " .. "vsplit" or "split")
@@ -68,18 +66,19 @@ local function area_layout(size, position, elements)
   local win_configs = register_elements(elements)
   local layout_func
   if position == "top" or position == "bottom" then
-    layout_func = tray_layout
+    layout_func = horizontal_layout
   else
-    layout_func = side_layout
+    layout_func = vertical_layout
   end
   return layout_func(size, position, win_configs)
 end
 
 function M.setup()
-  local tray_config = config.tray()
-  M.tray = area_layout(tray_config.size, tray_config.position, tray_config.elements)
-  local sidebar_config = config.sidebar()
-  M.sidebar = area_layout(sidebar_config.size, sidebar_config.position, sidebar_config.elements)
+  local layout_configs = config.layouts()
+  M.layouts = {}
+  for i, layout in ipairs(layout_configs) do
+    M.layouts[i] = area_layout(layout.size, layout.position, layout.elements)
+  end
   vim.cmd([[
     augroup DapuiWindowsSetup
       au!
@@ -89,8 +88,9 @@ function M.setup()
 end
 
 function M._force_buffers()
-  M.tray:force_buffers()
-  M.sidebar:force_buffers()
+  for _, layout in ipairs(M.layouts) do
+    layout:force_buffers()
+  end
 end
 
 function M.open_float(element, position, settings)
diff --git a/tests/unit/config/init_spec.lua b/tests/unit/config/init_spec.lua
index 5f95bfd..56be8dc 100644
--- a/tests/unit/config/init_spec.lua
+++ b/tests/unit/config/init_spec.lua
@@ -22,15 +22,17 @@ describe("checking setup function", function()
   end)
 
   it("fills elements", function()
-    config.setup({ sidebar = { elements = { "scopes" } } })
-    assert.same({ { id = "scopes", size = 1 } }, config.sidebar().elements)
+    config.setup({ layouts = { { size = 10, position = "left", elements = { "scopes" } } } })
+    assert.same({ { id = "scopes", size = 1 } }, config.layouts()[1].elements)
   end)
 
   it("fills elements with proportional size", function()
-    config.setup({ sidebar = { elements = { "scopes", "stacks" } } })
+    config.setup({
+      layouts = { { size = 10, position = "left", elements = { "scopes", "stacks" } } },
+    })
     assert.same(
       { { id = "scopes", size = 0.5 }, { id = "stacks", size = 0.5 } },
-      config.sidebar().elements
+      config.layouts()[1].elements
     )
   end)
 end)
diff --git a/tests/unit/windows/layout_spec.lua b/tests/unit/windows/layout_spec.lua
index d30cb3d..a14d22b 100644
--- a/tests/unit/windows/layout_spec.lua
+++ b/tests/unit/windows/layout_spec.lua
@@ -17,8 +17,9 @@ describe("checking window layout", function()
     config.setup()
     registered = {}
     run = {}
-    local position = config.sidebar().position
-    local width = config.sidebar().size
+    local layout_conf = config.layouts()[1]
+    local position = layout_conf.position
+    local width = layout_conf.size
     local open_cmd = position == "left" and "topleft" or "botright"
     local function open_sidebar_win(index)
       vim.cmd(index == 1 and open_cmd .. " " .. width .. "vsplit" or "split")