Hi Afaq,
Based on your query, it seems like you are working with defining reference frames in Simscape and are looking to set the origin of a new reference frame at a specific point marked with red. To achieve this, you can follow these steps:
1. Select the body for which you want to define the new reference frame.
2. Instead of selecting an edge for automatic midpoint placement, you can manually set the origin of the reference frame at the desired red point.
3. To do this, go to the options or properties of the reference frame creation tool in Simscape and look for an option to manually set the origin.
4. Once you have located this option, select it and then click on the red point in your simulation environment to place the origin of the new reference frame there.
By following these steps, you should be able to define a new reference frame in Simscape with its origin set at the specific red point you have marked. This will allow you to accurately model your system or simulation according to your requirements.
Let me know if you need further assistance or help.
