As I have already mention in my post, I have used this specific ESRI template which was downloaded from GitHub and I want (a) to change the dimensions or position of the frame which includes the title and a logo and (b) to add more widget positions.
More specific I want the frame's width to be as long as the map. Also I want to change the logo's properties (opasity, width).
Finally, with this theme I got 5 "empty" positions of widgets. I want to know how to make more of them.