diff --git a/Concepts.md b/Concepts.md
index 9a5903d..7fe6382 100644
--- a/Concepts.md
+++ b/Concepts.md
@@ -75,6 +75,8 @@ Special keys at **_empty filter prompt_**:
 | <kbd>/</kbd> | Toggle between string and regex |
 | <kbd>:</kbd> | Toggle case-sensitivity |
 | <kbd>^L</kbd> | Clear filter (_if prompt is non-empty_)<br>OR apply last filter |
+| <kbd>Bksp</kbd> | Stay at filter prompt and refresh dir |
+| <kbd>Del</kbd> | Stay at filter prompt and refresh dir |
 
 Additional special keys at **_empty filter prompt_** in **_type-to-nav_** mode: