Sidebar changes

Hello @examhelpniche

Thank you for using support forum for the query.
Would you please add the below css codes on Appearance > Customize > Additional CSS,

#secondary .widget ul li {
    width: 50%;
    float: left;
}

Hope this works.

Thank you

Thank you for your help, that code worked.
I also would like to have separate scroll bars for my post thumbnail section and main sidebar. Is that possible?

Hello @examhelpniche
There is no such option available in theme. Theme customization is needed for it.

Thank you