diff --git a/src/mapper/mp_proto.cc b/src/mapper/mp_proto.cc
index 2b0ef90..7e787fd 100644
--- a/src/mapper/mp_proto.cc
+++ b/src/mapper/mp_proto.cc
@@ -22,6 +22,7 @@ namespace fallout {
 #define NO 1
 
 static int proto_choose_container_flags(Proto* proto);
+static int proto_subdata_setup_int_button(const char* title, int key, int value, int min_value, int max_value, int* y, int a7);
 static void proto_critter_flags_redraw(int win, int pid);
 static int proto_critter_flags_modify(int pid);
 static int mp_pick_kill_type();
@@ -57,6 +58,9 @@ int edit_window_color = 1;
 // 0x559C60
 bool can_modify_protos = false;
 
+// 0x559C68
+static int subwin = -1;
+
 // 0x559C6C
 static int critFlagList[CRITTER_FLAG_COUNT] = {
     CRITTER_NO_STEAL,
@@ -221,6 +225,57 @@ int proto_choose_container_flags(Proto* proto)
     return 0;
 }
 
+// 0x492A3C
+int proto_subdata_setup_int_button(const char* title, int key, int value, int min_value, int max_value, int* y, int a7)
+{
+    char text[36];
+    int button_x;
+    int value_offset_x;
+
+    button_x = 10;
+    value_offset_x = 90;
+
+    if (a7 == 9) {
+        *y -= 189;
+    }
+
+    if (a7 > 8) {
+        button_x = 165;
+        value_offset_x -= 16;
+    }
+
+    _win_register_text_button(subwin,
+        button_x,
+        *y,
+        -1,
+        -1,
+        -1,
+        key,
+        title,
+        0);
+
+    if (value >= min_value && value < max_value) {
+        sprintf(text, "%d", value);
+        windowDrawText(subwin,
+            text,
+            38,
+            button_x + value_offset_x,
+            *y + 4,
+            _colorTable[32747] | 0x10000);
+    } else {
+        windowDrawText(subwin,
+            "<ERROR>",
+            38,
+            button_x + value_offset_x,
+            *y + 4,
+            _colorTable[31744] | 0x10000);
+    }
+
+    *y += 21;
+
+    return 0;
+}
+
 // 0x495438
 const char* proto_wall_light_str(int flags)
 {