More questions in tweeking the Template!
I hope you are well today and thank you for your questions.
To display it full width, you have to make the section full width ( shown in the attached screenshot ) in which you have added the portfolio.
How can I apply a custom gallery made in IMAGE RESOLUTION? At the moment I am uploading images to the GALLERY Section (just above the header Image) and then change the Page Setting from Default to Gallery. But can;t apply the Slider Revolution. Would appriciate your help. Thanks!
You should be able to assign the slider by creating slider as shown in the attached screenshot but i could confirm on my test site that it is not working therefore notified the theme developer about this so that it will be fixed.
The issue will be fixed ASAP.