Please check step by step instruction how to setup wp logo showcase.
or unzip the file and upload the folder in the plugin folder dir
1st Tab: Set the your own image size which size you want to re-size the logo.
4.1) Title: Add Logo Name
4.2) Logo Image: Add Logo Image
4.3) Logo Description: Add Logo description
5.1.1) Layout: First Select the Layout.
5.1.2) Column: Select how many column you wan to show.
5.2.1) Limit: You can set limit how many want to display.
5.2.2) Categories: You can select which category(s) you want to display.
5.2.3) Order By: You can select order by option name, title, data ..
5.2.4) Order: Set Order
You can select which fields you want to display.
5.4.1) You can set Primary color work for Button Color.
11) How to add Grid Layout?
Go to Shortcode Generator => Layout Settings Tab => Then select “Grid Layout” then select others rated fields.
11) How to add Slider Layout?
From Shortcode Generator => Layout Settings => Layout (Select Carousel Layout) then see below the Carousel property available check the property that you want to use.
12) How to use
From the Editor Logo icon click then a popup will show then select the Shortcode