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I tried to use the following in structure.tex file
\usepackage[a5paper,top=2cm,bottom=2cm,left = 2.5cm,right=2cm,headsep=7pt]{geometry}
I also tried this
\usepackage[top=3cm,bottom=3cm,left=1.5cm,right=1.5cm,headsep=7pt,a5paper]{geometry}
in the structure.tex but still have problem with the margin ...

I tried this but it doesn't work. what exactly commands I should use?
I tried
\usepackage[a5paper,top=2cm,bottom=2cm,left = 2.5cm,right=2cm,headsep=7pt]{geometry}
in the structure.tex but still have problem with the margin.
My point is to print it in a p5 format. I couldn't adjust the margin also ...

I tried this but it doesn't work what exactly commands I should use?
I tried also
\usepackage[a5paper,top=2cm,bottom=2cm,left = 2.5cm,right=2cm,headsep=7pt]{geometry}
in the structure.tex but still have problem with the margin.
Can anyone help me to fix this?