I recommend putting an option which we can change results signs from.
For example: in our university studies we use +ve sign for tension internal forces but, here in RSA the positive sign indicates that the member is subjected to compression. In the slabs too, we used to use +ve moment sign for the lower moment and -ve for the upper momment.
that conflict makes it difficult for many new users to understand results.
So, i recommend putting new option that we can reverse results signs from.
