Leaving the page unspecified will now make the slot appear on all

eco-core/core-plugin/src/main/kotlin/com/willfp/ecomenus/components/ConfigurableSlot.kt

@@ -28,7 +28,7 @@ class ConfigurableSlot(
 ) : PositionedComponent {
     override val row: Int = config.getInt("location.row")
     override val column: Int = config.getInt("location.column")
-    val page: Int = config.getInt("location.page")
+    val page: Int? = config.getIntOrNull("location.page")
 
     override val layer = runCatching { enumValueOf<MenuLayer>(config.getString("location.layer").uppercase()) }
         .getOrElse { MenuLayer.MIDDLE }

eco-core/core-plugin/src/main/kotlin/com/willfp/ecomenus/menus/Menu.kt

@@ -82,7 +82,7 @@ fun buildMenu(plugin: EcoPlugin, menu: EcoMenu, config: Config): Menu {
                 setMask(mask)
 
                 for (slot in slots) {
-                    if (pageNumber != slot.page) {
+                    if (slot.page != null && pageNumber != slot.page) {
                         continue
                     }
 

eco-core/core-plugin/src/main/resources/menus/_example.yml

@@ -87,7 +87,7 @@ slots:
     location:
       row: 6
       column: 5
-      page: 1
+      page: 1 # If you don't specify a page, it will be on all pages
 
       # (Optional) You can specify the layer of the slot.
       # The layer can be any of: lower, middle, upper, or top (defaults to middle)