diff --git a/config/plugins/utils/copilot-chat.nix b/config/plugins/utils/copilot-chat.nix
index e02b482..837c138 100644
--- a/config/plugins/utils/copilot-chat.nix
+++ b/config/plugins/utils/copilot-chat.nix
@@ -6,6 +6,12 @@
     settings = {
       # Model to use for Copilot Chat.
       model = "gpt-4.1";
+      # Use all buffers for context.
+      context = "buffers";
+      # Use yanked text for selection.
+      selection = "unnamed";
+      # Don't highlight the selection.
+      highlight_selection = false;
       # Window settings for Copilot Chat.
       window = {
         # Width of the chat window.
@@ -17,7 +23,7 @@
   # Keymaps for Copilot Chat.
   keymaps = [
     {
-      mode = ["n"];
+      mode = ["n" "v"];
       key = "<leader>ct";
       action = "<cmd>CopilotChatToggle<cr>";
       options = {
@@ -27,7 +33,7 @@
     }
 
     {
-      mode = ["n"];
+      mode = ["n" "v"];
       key = "<leader>cp";
       action = "<cmd>CopilotChatPrompts<cr>";
       options = {