This article will show you how to access and use the Hover Borders & Corners section of column advanced tab.
1. Select the specific column you want to customize.
2. Click on Advance Settings (cog icon) then on Advance Options button to show the OP3 builder sidebar.
3. On OP3 builder sidebar, click the Hover tab then on Border & Corners arrow to show the available option.
In there you can customize the border lines, colors and border radius that will be activated in hover state. Don’t forget to save the changes when done editing.