diff --git a/README.md b/README.md
index b719a13..903fc3e 100644
--- a/README.md
+++ b/README.md
@@ -197,6 +197,20 @@ local default_reference_config = {
     command_enable = true,
 }
 
+--- @type LspUI_pos_keybind_config
+local default_pos_keybind_config = {
+    main = {
+        back = "q",
+        hide_secondary = "<leader>h",
+    },
+    secondary = {
+        jump = "o",
+        quit = "q",
+        hide_main = "<leader>h",
+        enter = "<leader>l",
+    },
+}
+
 -- default config
 --- @type LspUI_config
 local default_config = {
@@ -210,18 +224,7 @@ local default_config = {
     declaration = default_declaration_config,
     implemention = default_implemention_config,
     reference = default_reference_config,
-    pos_keybind = {
-        main = {
-            back = "q",
-            hide_secondary = "<leader>h",
-        },
-        secondary = {
-            jump = "o",
-            quit = "q",
-            hide_main = "<leader>h",
-            enter = "<leader>l",
-        },
-    },
+    pos_keybind = default_pos_keybind_config,
 }
 
 ```
diff --git a/lua/LspUI/_meta.lua b/lua/LspUI/_meta.lua
index 03ecefd..dc66f97 100644
--- a/lua/LspUI/_meta.lua
+++ b/lua/LspUI/_meta.lua
@@ -26,7 +26,7 @@
 --- @field key_binding { prev: string?, next: string?, quit: string? }? keybind for `hover`
 
 -- this is just for some keybind like definition, type definition, declaration, reference, implemention
---- @alias pos_abstract_keybind { secondary: { jump: string?, quit:string?, hide_main:string?, enter: string? }?, main: { back: string?, hide_secondary: string? }? }
+--- @alias LspUI_pos_keybind_config { secondary: { jump: string?, quit:string?, hide_main:string?, enter: string? }?, main: { back: string?, hide_secondary: string? }? }
 
 --- @class LspUI_definition_config
 --- @field enable boolean? whether enable `definition` module
@@ -59,4 +59,4 @@
 --- @field declaration LspUI_declaration_config? `declaration` module
 --- @field implemention LspUI_implemention_config? `implemention` module
 --- @field reference LspUI_reference_config? `reference` module
---- @field pos_keybind pos_abstract_keybind? keybind for `definition`, `type definition`, `declaration`, `reference`, implemention
+--- @field pos_keybind LspUI_pos_keybind_config? keybind for `definition`, `type definition`, `declaration`, `reference`, implemention
diff --git a/lua/LspUI/config.lua b/lua/LspUI/config.lua
index 3ba9118..d3cf6ce 100644
--- a/lua/LspUI/config.lua
+++ b/lua/LspUI/config.lua
@@ -82,6 +82,20 @@ local default_reference_config = {
     command_enable = true,
 }
 
+--- @type LspUI_pos_keybind_config
+local default_pos_keybind_config = {
+    main = {
+        back = "q",
+        hide_secondary = "<leader>h",
+    },
+    secondary = {
+        jump = "o",
+        quit = "q",
+        hide_main = "<leader>h",
+        enter = "<leader>l",
+    },
+}
+
 -- default config
 --- @type LspUI_config
 local default_config = {
@@ -95,18 +109,7 @@ local default_config = {
     declaration = default_declaration_config,
     implemention = default_implemention_config,
     reference = default_reference_config,
-    pos_keybind = {
-        main = {
-            back = "q",
-            hide_secondary = "<leader>h",
-        },
-        secondary = {
-            jump = "o",
-            quit = "q",
-            hide_main = "<leader>h",
-            enter = "<leader>l",
-        },
-    },
+    pos_keybind = default_pos_keybind_config,
 }
 
 -- Prevent plugins from being initialized multiple times
@@ -114,6 +117,8 @@ local is_already_init = false
 
 local M = {}
 
+M.options = {}
+
 -- LspUI plugin init function
 -- you need to pass a table
 --- @param config LspUI_config?
@@ -133,16 +138,22 @@ end
 -- separate function for `rename` module
 --- @param rename_config LspUI_rename_config
 M.rename_setup = function(rename_config)
-    M.options.rename =
-        vim.tbl_deep_extend("force", default_rename_config, rename_config)
+    M.options.rename = vim.tbl_deep_extend(
+        "force",
+        M.options.rename or default_rename_config,
+        rename_config
+    )
 end
 
 -- separate function for `lightbulb` module
 -- now this function can't use
 --- @param lightbulb_config LspUI_lightbulb_config
 M.lightbulb_setup = function(lightbulb_config)
-    M.options.lightbulb =
-        vim.tbl_deep_extend("force", default_lightbulb_config, lightbulb_config)
+    M.options.lightbulb = vim.tbl_deep_extend(
+        "force",
+        M.options.lightbulb or default_lightbulb_config,
+        lightbulb_config
+    )
     vim.fn.sign_define(
         global.lightbulb.sign_name,
         { text = M.options.lightbulb.icon }
@@ -154,7 +165,7 @@ end
 M.code_action_setup = function(code_action_config)
     M.options.code_action = vim.tbl_deep_extend(
         "force",
-        default_code_action_config,
+        M.options.code_action or default_code_action_config,
         code_action_config
     )
 end
@@ -164,7 +175,7 @@ end
 M.diagnostic_setup = function(diagnostic_config)
     M.options.diagnostic = vim.tbl_deep_extend(
         "force",
-        default_diagnostic_config,
+        M.options.diagnostic or default_diagnostic_config,
         diagnostic_config
     )
 end
@@ -172,8 +183,71 @@ end
 -- separate function for `hover` module
 --- @param hover_config LspUI_hover_config
 M.hover_setup = function(hover_config)
-    M.options.hover =
-        vim.tbl_deep_extend("force", default_hover_config, hover_config)
+    M.options.hover = vim.tbl_deep_extend(
+        "force",
+        M.options.hover or default_hover_config,
+        hover_config
+    )
+end
+
+-- separate function for `definition` module
+--- @param definition_config LspUI_definition_config
+M.definition = function(definition_config)
+    M.options.definition = vim.tbl_deep_extend(
+        "force",
+        M.options.definition or default_definition_config,
+        definition_config
+    )
+end
+
+-- separate function for `type_definition` module
+--- @param type_definition_config LspUI_type_definition_config
+M.type_definition = function(type_definition_config)
+    M.options.type_definition = vim.tbl_deep_extend(
+        "force",
+        M.options.type_definition or default_type_definition_config,
+        type_definition_config
+    )
+end
+
+-- separate function for `declaration` module
+--- @param declaration_config LspUI_declaration_config
+M.declaration = function(declaration_config)
+    M.options.declaration = vim.tbl_deep_extend(
+        "force",
+        M.options.declaration or default_declaration_config,
+        declaration_config
+    )
+end
+
+-- separate function for `reference` module
+--- @param reference_config LspUI_reference_config
+M.reference = function(reference_config)
+    M.options.reference = vim.tbl_deep_extend(
+        "force",
+        M.options.reference or default_reference_config,
+        reference_config
+    )
+end
+
+-- separate function for `implemention` module
+--- @param implemention_config LspUI_implemention_config
+M.implemention = function(implemention_config)
+    M.options.implemention = vim.tbl_deep_extend(
+        "force",
+        M.options.implemention or default_implemention_config,
+        implemention_config
+    )
+end
+
+-- separate function for `pos_keybind` module
+--- @param pos_keybind_config LspUI_pos_keybind_config
+M.pos_keybind = function(pos_keybind_config)
+    M.options.pos_keybind = vim.tbl_deep_extend(
+        "force",
+        M.options.pos_keybind or default_pos_keybind_config,
+        pos_keybind_config
+    )
 end
 
 return M
diff --git a/lua/LspUI/pos_abstract.lua b/lua/LspUI/pos_abstract.lua
index 96d04fd..742a09d 100644
--- a/lua/LspUI/pos_abstract.lua
+++ b/lua/LspUI/pos_abstract.lua
@@ -153,7 +153,7 @@ local secondary_clear_hl = function()
 end
 
 local main_view_clear_keybind = function()
-    for lhs, _ in pairs(config.options.pos_keybind.main) do
+    for _, lhs in pairs(config.options.pos_keybind.main) do
         pcall(vim.api.nvim_buf_del_keymap, M.main_view_buffer(), "n", lhs)
     end
 end
@@ -169,7 +169,7 @@ local main_view_keybind = function()
             callback = function()
                 if M.secondary_view_hide() then
                     lib_windows.close_window(M.main_view_window())
-                    main_view_clear_keybind()
+                    -- main_view_clear_keybind()
                 else
                     api.nvim_set_current_win(M.secondary_view_window())
                 end
@@ -270,7 +270,7 @@ local secondary_view_autocmd = function()
             -- when seconday view close, clear main view highlight
             main_clear_hl()
             --try to clear main buffer keybind
-            main_view_clear_keybind()
+            -- main_view_clear_keybind()
         end,
     })
     api.nvim_create_autocmd("CursorMoved", {
@@ -338,7 +338,7 @@ M.main_view_buffer = function(buffer_id)
         -- remove old highlight
         main_clear_hl()
         -- try clear keybind
-        main_view_clear_keybind()
+        -- main_view_clear_keybind()
         -- set new main view buffer
         main_view.buffer = buffer_id
         -- load main view buffer
@@ -357,7 +357,7 @@ M.main_view_buffer = function(buffer_id)
         -- highlight new main_view_buffer
         main_set_hl(M.datas()[current_item.uri])
         -- add keybind
-        main_view_keybind()
+        -- main_view_keybind()
     end
     return main_view.buffer
 end
@@ -496,7 +496,7 @@ end
 --- @return integer width
 --- @return integer height
 local generate_secondary_view = function()
-    main_clear_hl()
+    secondary_clear_hl()
     if not api.nvim_buf_is_valid(M.secondary_view_buffer()) then
         M.secondary_view_buffer(api.nvim_create_buf(false, true))
     end