How to filter products by availability on Galleria template?

[Twiddler]

Hello! I am trying to emulate a look from a store I like. The following photo is from stompinggroundstcg.com and they use the template "Galleria" but I haven't seen that this is a specific thing for that template. I am thinking it is either a setting I am missing or it is a plugin. 

I really like how you can filter In-Stock or by product type. Can someone please advise? 

Thank you! 

[Made4uo-Ribe]

Hi @Twiddler 

Looks like your talking about the Galleria Theme, it's a paid theme. The product filter of that theme same on the shared website. 

You can check the feature of that theme here. 

Galleria Theme 

Even you can try also the demo. 

[Twiddler]

Nevermind, I figured it out. Shopify's interface is absolutely wonky as heck. Nothing is intuitive. Thanks for the heads up of what to look for so I could Google it.