diff --git a/helix.toml b/helix.toml
index e22970d9ff6ed4137b1fdc823b1624d3d66467d8..2523219a9e70ecd0ae290415af4b4ef38fbeb9dd 100644
--- a/helix.toml
+++ b/helix.toml
@@ -8,6 +8,7 @@ scrolloff = 10
 idle-timeout = 1000
 mouse = false
 middle-click-paste = true
+rulers = [80, 120]
 
 [editor.cursor-shape]
 insert = "bar"
@@ -21,6 +22,7 @@ [keys.normal]
 "esc" = [ "collapse_selection", "keep_primary_selection" ]
 "{" = [ "goto_prev_paragraph" ]
 "}" = [ "goto_next_paragraph" ]
+"D" = ["ensure_selections_forward", "extend_to_line_end", "delete_selection"]
 
 [keys.select]
 "{" = [ "goto_prev_paragraph" ]