diff --git a/server/AyaNova/PickList/LoanUnitPickList.cs b/server/AyaNova/PickList/LoanUnitPickList.cs
index 01297387..ac9d1301 100644
--- a/server/AyaNova/PickList/LoanUnitPickList.cs
+++ b/server/AyaNova/PickList/LoanUnitPickList.cs
@@ -3,7 +3,7 @@ using Newtonsoft.Json.Linq;
 using AyaNova.Biz;
 namespace AyaNova.PickList
 {
-    internal class LoanUnitPickList : AyaPickList
+    internal class LoanUnitPickList : AyaPickList, IAyaPickListVariant
     {
         public LoanUnitPickList()
         {
@@ -71,9 +71,23 @@ namespace AyaNova.PickList
 
         public string GetVariantCriteria(string variant)
         {
-            //  :variant="availableonly"  Only items that are not on a workorderitemloan
-            if (string.IsNullOrWhiteSpace(variant) || variant != "availableonly") return string.Empty;
-            return "aloanunit.workorderitemloanid is null";
+            //  :variant="availableonly:[preselectedid]"  Only items that are not on a workorderitemloan
+            if (string.IsNullOrWhiteSpace(variant)) return string.Empty;
+
+            if (!variant.Contains(":"))
+                throw new System.ArgumentOutOfRangeException($"LoanUnitPickList variant specified \"{variant}\" not valid, missing preselect id");
+
+            var v = variant.Split(":");
+            long loanUnitId = 0;
+            if (!string.IsNullOrWhiteSpace(v[1]))
+            {
+                long.TryParse(v[1], out loanUnitId);
+            }
+
+            if (loanUnitId != 0)
+                return $"workorderitemloanid is null or id={loanUnitId}";
+            else
+                return "workorderitemloanid is null";
 
         }