diff --git a/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md b/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
index ac63bcea12014a87a3c6c373e9d87d5f71e5d039..5c65c27483872642d25b85a5a0097c4c75940c0d 100644
--- a/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
+++ b/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
@@ -5,14 +5,30 @@
 
 
 
++----------------------------------------------------------------+
+|**oneM2M** **Technical**  **Specification**                     |
++=================+:=============================================+
+|Document Number  |oneM2M-TS-0019-V-4.2.0                        |
++-----------------+----------------------------------------------+
+|Document Name:   |Abstract Test Suite and Implementation        |
+|                 |eXtra Information for Test                    |
++-----------------+----------------------------------------------+
+|Date:            |2024 March 1                                  |
++-----------------+----------------------------------------------+
+|Abstract:        |Abstract Test Suite and Implementation eXtra  |
+|                 |Information for Test consists of:             |
+|                 |                                              |
+|                 |- Definition of the Abstract Protocol Tester  |
+|                 |  (APT)                                       |
+|                 |- Definition of TTCN-3 test architecture      |
+|                 |- Development of TTCN-3 test suite, e.g.      |
+|                 |  naming conventions, code documentation, test|
+|                 |  case structure.                             |
+|                 |- IXIT proforma;                              |
++-----------------+----------------------------------------------+
+|Template Version:23 February 2015 (Do not modify)               |
++----------------------------------------------------------------+
 
-|**oneM2M**<br />**Technical**  **Specification** |**oneM2M**<br />**Technical**  **Specification** |
-|-|-|
-|Document Number |oneM2M-TS-0019-V-4.2.0 |
-|Document Name: |Abstract Test Suite and Implementation eXtra Information for Test |
-|Date: |2024 March 1 |
-|Abstract: |Abstract Test Suite and Implementation eXtra Information for Test consists of :<br />-    Definition of the Abstract Protocol Tester (APT)<br />-    Definition of TTCN-3 test architecture<br />-    Development of TTCN-3 test suite, e.g. naming conventions, code documentation, test case structure.<br />-    IXIT proforma;<br /> |
-|Template Version:23 February 2015 (Do not modify) |Template Version:23 February 2015 (Do not modify) |
 
 
 
@@ -324,6 +340,23 @@ Both primitives contain another parameters that permits to dynamically configure
 - Serialization
 - ForceFields: used to force invalid or empty values to certain attributes. This behaviour shall be implemented by the System Adaptor.
 
+Adding a grid table for testing
+
+**Table 5.4.1-1: Mapping of TTCN-3 Primitives to oneM2M Service Primitives**<a name="table_5.4.1-1"></a>
+
++----------------------+-------------------+-----------+-----+
+|TTCN-3 Primitive      |oneM2M Message     | Direction | IUT |
++:====================:+:=================:+:=========:+:===:+
+|                      |                   | <=>       | AE  |
+| M2MRequestPrimitive  |Request Primitive  +-----------+-----+
+|                      |                   | <=>       | CSE |
++----------------------+-------------------+-----------+-----+
+|                      |                   | <=>       | AE  |
+| M2MResponsePrimitive |Respomse Primitive +-----------+-----+
+|                      |                   | <=>       | CSE |
++----------------------+-------------------+-----------+-----+
+
+
 **Table 5.4.1-1: Mapping of TTCN-3 Primitives to oneM2M Service Primitives**<a name="table_5.4.1-1"></a>
 
 <table>
@@ -359,7 +392,15 @@ Both primitives contain another parameters that permits to dynamically configure
     </tbody>
 </table>
 
+Adding some equations:
 
+$\left[\int_{-infty}^{\infty} f(x) \; dx\right]$
+
+$\log(x)$ 
+
+$\lim_{x \to \infty} f(x)$ 
+
+$\displaystyle \frac{\partial f}{\partial x}$
 
 ### 5.4.2 mcnPort, mcnPortIn
 These ports are used to send and receive the following message sets:
@@ -379,6 +420,20 @@ Two primitives are currently defined for these ports indicated:
 
 Further primitives might be defined to support other underlying networks.
 
+**Table 5.4.1-1: Mapping of TTCN-3 Primitives to oneM2M Service Primitives**<a name="table_5.4.1-1"></a>
+
++---------------------+------------------+----------+----+
+|TTCN-3 Primitive     |oneM2M Message    |Direction |IUT |
++:===================:+:================:+:========:+:==:+
+|                     |                  |<=>       |AE  |
+|M2MRequestPrimitive  |Request Primitive +----------+----+
+|                     |                  |<=>       |CSE |
++---------------------+------------------+----------+----+
+|                     |                  |<=>       |AE  |
+|M2MResponsePrimitive |Respomse Primitive+----------+----+
+|                     |                  |<=>       |CSE |
++---------------------+------------------+----------+----+
+