For general settings
Go To : Appearance > Customize > Blog

Blog Archive / Posts Page – Layout Style

Go To : Appearance > Customize > Blog > Entries & Archives > Main Layout Style

Available options are :
– No Sidebar
– Left Sidebar
– Right Sidebar

Posts – Layout Style

Go To : Appearance > Customize > Blog > Entries & Archives > Posts Layout Style

Available options are :
– Default – Content below image
– Thumb to Left (List)
– Grid – 2 columns
– Grid – 3 columns
– Masonry – 2 columns
– Masonry – 3 columns

Standard First Post ( First Post with default style ) can be ON / OFF.

Single Post Layout Style

Go To : Appearance > Customize > Blog > Single Post > Single Post Layout

Available options are :
– No Sidebar
– Left Sidebar
– Right Sidebar