diff --git a/1.3/Assemblies/ResearchWhatever.dll b/1.3/Assemblies/ResearchWhatever.dll
index 03c018b..322c1e9 100644
Binary files a/1.3/Assemblies/ResearchWhatever.dll and b/1.3/Assemblies/ResearchWhatever.dll differ
diff --git a/Source/ResearchWhatever13/Patches/WorkGiver_ResearcherPatch.cs b/Source/ResearchWhatever13/Patches/WorkGiver_ResearcherPatch.cs
index ff0eeee..8fb8821 100644
--- a/Source/ResearchWhatever13/Patches/WorkGiver_ResearcherPatch.cs
+++ b/Source/ResearchWhatever13/Patches/WorkGiver_ResearcherPatch.cs
@@ -45,7 +45,6 @@ namespace ResearchWhatever.Patches
 
         static void Prefix(Pawn pawn, Thing t, bool forced)
         {
-            
             ResearchProjectDef currentProj = Find.ResearchManager.currentProj;
             if (currentProj != null) return;
             Building_ResearchBench bench = t as Building_ResearchBench;
@@ -60,8 +59,9 @@ namespace ResearchWhatever.Patches
                 where Find.Storyteller.difficulty.AllowedBy(x.hideWhen)
                 && !x.IsFinished
                 && x.TechprintRequirementMet
-                && x.PrerequisitesCompleted 
+                && x.PrerequisitesCompleted
                 && (x.requiredResearchBuilding == null || x.requiredResearchBuilding == bench.def && bench.hasFacilities(x.requiredResearchFacilities))
+                && x.GetModExtension<ResearchWhateverExtansion>()?.ignore != true
                 select x);
 
             if (projects.NullOrEmpty())
@@ -70,7 +70,7 @@ namespace ResearchWhatever.Patches
                 Messages.Message("ResearchWhateverNothingLeftToResearch".Translate(bench.Label).CapitalizeFirst(), new TargetInfo(bench.Position, bench.Map, false), MessageTypeDefOf.NeutralEvent);
                 return;
             }
-            projects.SortBy(x => x.CostApparent);
+            projects.SortBy(x => x.GetModExtension<ResearchWhateverExtansion>()?.lowPriority == true ? 100000000f + x.CostApparent : x.CostApparent);
 
             ResearchProjectDef def = projects.First();
             projects.TryRandomElementByWeight(x => x.CostApparent == def.CostApparent ? 1f : 0f, out def);
diff --git a/Source/ResearchWhatever13/ResearchWhatever.csproj b/Source/ResearchWhatever13/ResearchWhatever.csproj
index e220e89..48e2371 100644
--- a/Source/ResearchWhatever13/ResearchWhatever.csproj
+++ b/Source/ResearchWhatever13/ResearchWhatever.csproj
@@ -67,6 +67,7 @@
     <Compile Include="ResearchWhatever.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="ResearchWhateverComp.cs" />
+    <Compile Include="ResearchWhateverExtansion.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
diff --git a/Source/ResearchWhatever13/ResearchWhateverExtansion.cs b/Source/ResearchWhatever13/ResearchWhateverExtansion.cs
new file mode 100644
index 0000000..2990846
--- /dev/null
+++ b/Source/ResearchWhatever13/ResearchWhateverExtansion.cs
@@ -0,0 +1,10 @@
+using Verse;
+
+namespace ResearchWhatever
+{
+    public class ResearchWhateverExtansion : DefModExtension
+    {
+        public bool ignore = false;
+        public bool lowPriority = false;
+    }
+}
diff --git a/change.log b/change.log
index a5b980d..ae31b68 100644
--- a/change.log
+++ b/change.log
@@ -1,4 +1,8 @@
-1.0.2
+1.0.3
+- added an extension to make it possible to ignore some research or prioritize last;
+- made so repeatable research from firefoxpdm.ResearchableStatUpgrades us always bottom priority;
+
+1.0.2
 - option gets disabled if building is not of player faction;
 
 1.0.1