Hello Amit,
Currently, there is no way to set the paths to automatically be the relative paths. When you first load the user interface, you can open the SIT Connection Manager and re-Load the model with the new path and then click OK. When you run the VI, it will again prompt to you to locate the model, but it will give you the option to browse for the file.
Setting relative paths is a great suggestion, and I would encourage you to provide that feedback at our
Product Suggestion Center. I will also file a request here.
Please let me know if you have any other questions.
Regards,
Kristi H
National Instruments