On page load, you might have observed that the default 「All」 tab is displayed. You can change this tab with a Default Tab on Page Load option.
The setting can be found under Grid / Masonry tab.
Set toggle to Custom and enter a category name that you want to set as a default tab. That means the category name that you will enter will display as the active tab on the page load.
Note: Make sure you enter the exact same name for the category set for the image. Refer How to Set Categories for Images?
Here is an example of how it works –
Consider some of the images are assigned a category Design.
And you wish to display Design category tab active on page load.
Set toggle to Custom. Then enter a Default Tab as Design ( make sure the name is exactly same as the category name set for the images )
Now on the page load, Design tab will be displayed as an active tab, and images that are assigned a category Design will display under it.
Note: If you want to display 「All」 tab as a Default Tab, leave the toggle to FIRST.