diff --git a/memory-bank/projectbrief.md b/memory-bank/projectbrief.md
index 692059f..c08b60e 100644
--- a/memory-bank/projectbrief.md
+++ b/memory-bank/projectbrief.md
@@ -29,6 +29,15 @@ The user can:
 - Use DNS-based resolution for hostnames
 - Quickly update IP addresses
 
+Key Bindings:
+- `ctrl`+`e`: Change to edit mode
+- `e`: Edit the currently selected hostname entry
+- `space`: Entry activation toggle
+- `i` Sort by IP addresses
+- `n` Sot by (the first) hostname
+- `c` To open the tool configuration
+- `?` or `h`: Display help about all Key Bindings
+
 The program will operate in **view-only mode** by default and require explicit entry into **edit mode**, at which point it will request elevated (sudo) permissions until editing is disabled.
 
 The project uses: