Hi,
hmmm... I am not sure I understand what do you mean by "filter the catalog by selecting multiple categories"?
You can already search through different categories. Or do you mean the "tag filtering" feature? The tag-filter function does not allow filtering in different categories, but only, because you're already on a specific category page. Example, if you are on the "t-shirts" category page, so your URL would look like this: http://your-site/catalog/t-shirts/?tag=yourtag. What do you think, how should the URL look like, if you want to filter through multiple categories: http://your-site/catalog/t-shirts/bananas/foo/whatever/bla-bla/?tag=yourtag ? ;-)
That's exactly why the search function is here for.
hmmm... I am not sure I understand what do you mean by "filter the catalog by selecting multiple categories"?
You can already search through different categories. Or do you mean the "tag filtering" feature? The tag-filter function does not allow filtering in different categories, but only, because you're already on a specific category page. Example, if you are on the "t-shirts" category page, so your URL would look like this: http://your-site/catalog/t-shirts/?tag=yourtag. What do you think, how should the URL look like, if you want to filter through multiple categories: http://your-site/catalog/t-shirts/bananas/foo/whatever/bla-bla/?tag=yourtag ? ;-)
That's exactly why the search function is here for.