Hi,
sorry for keep you waiting,
slider settings you can set in Dashboard/Revolution slider and then click on slider to edit. There would be all options for slider.
For portfolio: yes, you need to edit php files for customizations. So, for each case, we are sending you all portfolio files in zip format.
If you still have problem with templates, we suppose this is happening because you have GoDady and Visual Composer. As we said, we do not support that.
Let us know if you need anything else.
Kind regards