I just noticed that you can only select one options for each attribute in the layered navigation. Any ideas how to get the multiple select?
We have an extension with a multiple option choice feature. You could take a look at the detailed description here - https://www.aitoc.com/en/magentomods_layered_navigation_pro.html.
Aitoc is a group of distinguished web developers that have been building for Magento since 2009.
See our extensions for Magento 2.
Default Magento only limits customers to choose one option in each attribute to filter at a time, which poses an inconvenient constraint on customers’ choice. With Magento SEO Layered Navigation Extension, customers can select various options in each attribute with multiple select checkbox.
The extension features:
GET THE MULTI SELECT with our Magento experts support!
I believe Magento 2 Layered Navigation would help you out. This cool extension provides you with multiple values selecting and disselecting. Besides, there are much more advanced features that you would love to add to your websites such as Fast Ajax Product Filter, Price Slider & Numeric Filter, and Responsive & Mobile Optimized. Definitely worth trying!