diff --git a/assets/Amily2-AdditionalFeatures.html b/assets/Amily2-AdditionalFeatures.html
index 5950be1..c0fea72 100644
--- a/assets/Amily2-AdditionalFeatures.html
+++ b/assets/Amily2-AdditionalFeatures.html
@@ -253,6 +253,11 @@
                     <label for="amily2_mhb_small_trigger_count" title="“自动巡录”和“开始远征”的单次作战楼层数。">远征阈值:</label>
                     <input id="amily2_mhb_small_trigger_count" type="number" min="1" class="text_pole" style="width: 70px;" placeholder="30">
                 </div>
+
+                <div class="auto-control-pair">
+                    <label for="historiography_retention_count" title="保留最近的对话层数不参与自动总结。">保留层数:</label>
+                    <input id="historiography_retention_count" type="number" min="0" class="text_pole" style="width: 70px;" placeholder="5">
+                </div>
             </div>