sg-summer right bar

[RowanP]

Hello

I'm currently using the lovely sg-summer template. But there is 1 thing I don't like about it.
That is that the content middle part is pretty small. Since I don't use my right bar, I'd love the middle part to take that space aswell to make it better readable!
Can someone please help me with removing the right bar (or at least take him out of function when not used) and expand the content middle part?

Thanks in advance!
Rowan