diff --git a/src/net/torvald/terrarum/PostProcessor.kt b/src/net/torvald/terrarum/PostProcessor.kt
index f1094ecb4..a08cca457 100644
--- a/src/net/torvald/terrarum/PostProcessor.kt
+++ b/src/net/torvald/terrarum/PostProcessor.kt
@@ -13,6 +13,7 @@ import com.badlogic.gdx.graphics.glutils.ShapeRenderer
 import com.badlogic.gdx.math.Matrix4
 import net.torvald.terrarum.gamecontroller.KeyToggler
 import net.torvald.terrarum.ui.BasicDebugInfoWindow
+import net.torvald.terrarum.worlddrawer.BlocksDrawer
 
 /**
  * Must be called by the App Loader
@@ -37,6 +38,8 @@ object PostProcessor {
 
     private val debugUI = BasicDebugInfoWindow()
 
+    private var functionRowHelper = Texture(Gdx.files.internal("assets/graphics/function_row_help.png"))
+
     fun dispose() {
         batch.dispose()
         shapeRenderer.dispose()
@@ -78,6 +81,25 @@ object PostProcessor {
                 drawSafeArea()
             }
 
+            if (KeyToggler.isOn(Input.Keys.F1)) {
+                batch.color = Color.WHITE
+                batch.inUse {
+                    it.draw(functionRowHelper,
+                            (AppLoader.screenW - functionRowHelper.width) / 2f,
+                            functionRowHelper.height.toFloat(),
+                            functionRowHelper.width.toFloat(),
+                            functionRowHelper.height * -1f
+                    )
+                }
+            }
+
+            if (KeyToggler.isOn(Input.Keys.F10)) {
+                batch.color = Color.WHITE
+                batch.inUse {
+                    AppLoader.fontSmallNumbers.draw(it, "Wire draw bits: ${BlocksDrawer.drawWires.toString(2)}", 2f, 2f)
+                }
+            }
+
             if (KeyToggler.isOn(Input.Keys.F3)) {
                 if (!debugUI.isOpened && !debugUI.isOpening) debugUI.setAsOpen()
                 batch.inUse { debugUI.renderUI(batch, camera) }
diff --git a/src/net/torvald/terrarum/modulebasegame/items/WirePieceSignalWire.kt b/src/net/torvald/terrarum/modulebasegame/items/WirePieceSignalWire.kt
index eec295a1b..46285fde5 100644
--- a/src/net/torvald/terrarum/modulebasegame/items/WirePieceSignalWire.kt
+++ b/src/net/torvald/terrarum/modulebasegame/items/WirePieceSignalWire.kt
@@ -39,6 +39,5 @@ class WirePieceSignalWire(override val originalID: ItemID) : GameItem() {
 
     override fun effectWhenEquipped(delta: Float) {
         IngameRenderer.selectedWireBitToDraw = Wire.BIT_SIGNAL_RED
-        //println("wires!")
     }
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt b/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
index 9b54b4e76..0209ee375 100644
--- a/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
+++ b/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
@@ -215,6 +215,9 @@ internal object BlocksDrawer {
         renderUsingBuffer(FLUID, projectionMatrix)
     }
 
+    var drawWires = 0
+        private set
+
     internal fun drawFront(projectionMatrix: Matrix4, drawWires: Int) {
         // blend mul
         Gdx.gl.glEnable(GL20.GL_TEXTURE_2D)
@@ -228,8 +231,9 @@ internal object BlocksDrawer {
 
         gdxSetBlendNormal()
 
+        this.drawWires = drawWires
         if (drawWires != 0) {
-            //println("drawing wires")
+            //println("Wires! draw: $drawWires") // use F10 instead
             renderUsingBuffer(WIRE, projectionMatrix)
         }
     }