How to Customize Account Columns
From the left navigation menu, click Org Tools > Accounts.
From the top right corner, click Customize Columns...
To the right of the available/selected columns, click + Add or + Remove.
When satisfied with the selected columns, click Apply.
How to Customize Account Filters
From the left navigation menu, click Org Tools > Accounts.
To the right of the search bar, click Customize Filters...
Filter the report as desired.
When finished, click Apply.