diff --git a/src/mappings.rs b/src/mappings.rs
index b48347c..30708f6 100644
--- a/src/mappings.rs
+++ b/src/mappings.rs
@@ -130,27 +130,36 @@ pub struct StrideMapping<const STRIDE_NUM: usize = 24> {
 
 impl<const STRIDE_NUM: usize> StrideMapping<STRIDE_NUM> {
     pub fn new() -> Self {
-        /*let stride_json = vec!(
-            (0, 0, 17),
-            (1, 0, 17),
-            (2, 0, 17),
-            (3, 0, 17),
-            (4, 0, 16),
-            (5, 0, 17),
-            (6, 0, 17),
-            (7, 0, 17),
-            (8, 0, 17),
-            (9, 0, 17),
-            (10, 0, 17),
-            (11, 0, 17),
-            (12, 0, 18),
-            (13, 0, 17),
-            (14, 0, 18),
-            (15, 0, 17),
-            (16, 0, 17),
-            (17, 0, 17)
-        );*/
-        let stride_json = vec!(
+        Self::from_json(vec!(
+            (0, 0, 255, false)
+        ))
+    }
+
+    pub fn new_jar() -> Self {
+        Self::from_json(vec!(
+            (0, 0, 17, false),
+            (1, 0, 17, false),
+            (2, 0, 17, false),
+            (3, 0, 17, false),
+            (4, 0, 16, false),
+            (5, 0, 17, false),
+            (6, 0, 17, false),
+            (7, 0, 17, false),
+            (8, 0, 17, false),
+            (9, 0, 17, false),
+            (10, 0, 17, false),
+            (11, 0, 17, false),
+            (12, 0, 18, false),
+            (13, 0, 17, false),
+            (14, 0, 18, false),
+            (15, 0, 17, false),
+            (16, 0, 17, false),
+            (17, 0, 17, false)
+        ))
+    }
+
+    pub fn new_panel() -> Self {
+        Self::from_json(vec!(
             (0, 0, 16, false),
             (1, 0, 16, true),
             (2, 0, 16, false),
@@ -167,7 +176,10 @@ impl<const STRIDE_NUM: usize> StrideMapping<STRIDE_NUM> {
             (13, 0, 16, true),
             (14, 0, 16, false),
             (15, 0, 16, true),
-        );
+        ))
+    }
+
+    pub fn from_json(stride_json: Vec<(u8, u8, u8, bool)>) -> Self {
         let mut strides = [Stride::default(); STRIDE_NUM];
         let stride_count = stride_json.len();
         let mut physical_idx = 0;