Enfold Minimal Portfolio: How to remove alternate content and alter main conten

Hi!
I am working with Enfold Minimal at the moment. Liking it a lot. Here is the thing. I am trying to create a simple one page site where I can change the images in the slider (instead of the green plants and blue pill bottle images). In other words, I would like my own images in the slider. How can I do that?

Also, How can I change color of the slider buttons (left and right arrows)?

Second, how can I modify and also turn on and turnoff (or add and remove) the main body directly below slider that begins…AENEAN LEO LIGULA, PORTTITOR EU…?

Third, how can I modify and also turn on and turn off (or add and remove) the little Latest Work “gallery” of photos with flip up name tags (computers, sunglasses, etc.)?

Last, How can I modify and also turn on and turnoff the section directly below the “gallery” called What My Customers Say About Me?

Finally, am I missing something because I thought there was a way in pagebuilder or another easy way for me to add in a “call for action” Button Widget that can link to my sign up page or to my contact e-mail, etc.?

Thanks so much for the questions. Yeah, I know, why don’t you just write a whole new theme for me, right? Thanks anyway!