diff --git a/src/config/config.h b/src/config/config.h
index e7a2ee9..20da6ee 100644
--- a/src/config/config.h
+++ b/src/config/config.h
@@ -7,7 +7,10 @@ namespace config {
 static constexpr const uint8_t toolCount = 5U; ///< Max number of extruders/tools/slots
 
 // Idler's setup
-//static constexpr uint16_t idlerSlotPositions[toolCount+1] = { 1, 2, 3, 4, 5, 0 };
+static constexpr uint16_t idlerSlotPositions[toolCount + 1] = { 1, 2, 3, 4, 5, 0 }; ///< slots 0-4 are the real ones, the 5th is the idle position
+
+// Selector's setup
+static constexpr uint16_t selectorSlotPositions[toolCount + 1] = { 1, 2, 3, 4, 5, 6 }; ///< slots 0-4 are the real ones, the 5th is the farthest parking positions
 
 // Printer's filament sensor setup
 static constexpr const uint16_t fsensorDebounceMs = 10;
diff --git a/src/modules/idler.cpp b/src/modules/idler.cpp
index 11e9094..a23e1fa 100644
--- a/src/modules/idler.cpp
+++ b/src/modules/idler.cpp
@@ -7,9 +7,6 @@
 namespace modules {
 namespace idler {
 
-// @@TODO PROGMEM
-uint16_t const Idler::slotPositions[slotPositionSize] = { 1, 2, 3, 4, 5, 0 };
-
 Idler idler;
 
 namespace mm = modules::motion;
@@ -25,7 +22,7 @@ bool Idler::Disengage() {
 
     mm::motion.InitAxis(mm::Idler);
     // plan move to idle position
-    mm::motion.PlanMove(mm::Idler, slotPositions[IdleSlotIndex()] - mm::motion.CurrentPos(mm::Idler), 1000); // @@TODO
+    mm::motion.PlanMove(mm::Idler, config::idlerSlotPositions[IdleSlotIndex()] - mm::motion.CurrentPos(mm::Idler), 1000); // @@TODO
     state = Moving;
     return true;
 }
@@ -41,7 +38,7 @@ bool Idler::Engage(uint8_t slot) {
         return true;
 
     mm::motion.InitAxis(mm::Idler);
-    mm::motion.PlanMove(mm::Idler, slotPositions[slot] - mm::motion.CurrentPos(mm::Idler), 1000); // @@TODO
+    mm::motion.PlanMove(mm::Idler, config::idlerSlotPositions[slot] - mm::motion.CurrentPos(mm::Idler), 1000); // @@TODO
     state = Moving;
     return true;
 }
diff --git a/src/modules/idler.h b/src/modules/idler.h
index 5a8d391..93e7e54 100644
--- a/src/modules/idler.h
+++ b/src/modules/idler.h
@@ -50,17 +50,12 @@ public:
     inline uint8_t Slot() const { return currentSlot; }
 
     /// @returns predefined positions of individual slots
-    inline static uint16_t SlotPosition(uint8_t slot) { return slotPositions[slot]; }
+    inline static uint16_t SlotPosition(uint8_t slot) { return config::idlerSlotPositions[slot]; }
 
     /// @returns the index of idle position of the idler, usually 5 in case of 0-4 valid indices of filament slots
     inline static constexpr uint8_t IdleSlotIndex() { return config::toolCount; }
 
 private:
-    constexpr static const uint8_t slotPositionSize = config::toolCount + 1;
-
-    /// slots 0-4 are the real ones, the 5th is the idle position
-    static const uint16_t slotPositions[slotPositionSize];
-
     /// internal state of the automaton
     uint8_t state;
 
diff --git a/src/modules/selector.cpp b/src/modules/selector.cpp
index 36d74f1..fe07788 100644
--- a/src/modules/selector.cpp
+++ b/src/modules/selector.cpp
@@ -7,9 +7,6 @@
 namespace modules {
 namespace selector {
 
-// @@TODO PROGMEM
-const uint16_t Selector::slotPositions[slotPositionSize] = { 1, 2, 3, 4, 5, 6 }; // @@TODO
-
 Selector selector;
 
 namespace mm = modules::motion;
@@ -24,7 +21,7 @@ bool Selector::MoveToSlot(uint8_t slot) {
         return true;
 
     mm::motion.InitAxis(mm::Selector);
-    mm::motion.PlanMove(mm::Selector, slotPositions[slot] - mm::motion.CurrentPos(mm::Selector), 1000); // @@TODO
+    mm::motion.PlanMove(mm::Selector, config::selectorSlotPositions[slot] - mm::motion.CurrentPos(mm::Selector), 1000); // @@TODO
     state = Moving;
     return true;
 }
diff --git a/src/modules/selector.h b/src/modules/selector.h
index 83d2427..61bc807 100644
--- a/src/modules/selector.h
+++ b/src/modules/selector.h
@@ -41,17 +41,12 @@ public:
     inline uint8_t Slot() const { return currentSlot; }
 
     /// @returns predefined positions of individual slots
-    inline static uint16_t SlotPosition(uint8_t slot) { return slotPositions[slot]; }
+    inline static uint16_t SlotPosition(uint8_t slot) { return config::selectorSlotPositions[slot]; }
 
     /// @returns the index of idle position of the selector, usually 5 in case of 0-4 valid indices of filament slots
     inline static constexpr uint8_t IdleSlotIndex() { return config::toolCount; }
 
 private:
-    constexpr static const uint8_t slotPositionSize = config::toolCount + 1;
-
-    /// slots 0-4 are the real ones, the 5th is the farthest parking positions
-    static const uint16_t slotPositions[slotPositionSize];
-
     /// internal state of the automaton
     uint8_t state;
     uint8_t plannedSlot;