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While FW Gallery is fully seld-sufficient solution, add-ons may add features your website needs. The main plugin has a functionality that is critical for it to work. All other features come as add-ons to allow customers decide which configuration they prefer on their website. Add-on is the simplest way to add new features and design to FW Gallery.

There are 2 ways to get add-ons:

Go to Admin -> FW Gallery -> Add-ons and get add-ons from there.
Go to FW Gallery official page on fastw3b.com, scroll to Add-ons section and get them from there.
All add-ons you have available will be listed in Admin -> FW Gallery -> Dashboard -> Add-ons section.