diff --git a/package/contents/ui/config.ui b/package/contents/ui/config.ui
index 8eeb4b3..fce349e 100644
--- a/package/contents/ui/config.ui
+++ b/package/contents/ui/config.ui
@@ -220,6 +220,9 @@
                                     <property name="text">
                                         <string>Stack columns by default</string>
                                     </property>
+                                    <property name="toolTip">
+                                        <string>New columns start in stacked mode</string>
+                                    </property>
                                 </widget>
                             </item>
                             <item row="11" column="1">
@@ -227,6 +230,9 @@
                                     <property name="text">
                                         <string>Resize neighbor column on edge resize</string>
                                     </property>
+                                    <property name="toolTip">
+                                        <string>When resizing a column by dragging its edge, also inversely resize the column on the other side of the edge</string>
+                                    </property>
                                 </widget>
                             </item>
                             <item row="12" column="1">