WordPress admin display post type tags as checkbox

I used WordPress ACF plugin to created a post type called resource, also I created two tag categories named resource-type and resource-topic, I can added in those tags in the post by the enter certain key in input box, but if the input is mistype, a new tag will auto added in the list, this is not what I want and I think of make the tags as checkbox so that it would easily know what tags is available and reduce the mistype error, is it possible to change like this way?

Two e-commerce in two different folders of the same domain

I need to create two e-commerce with woocommerce, one in the main directory of my site in Italian and English for online sales in Europe, and one in a subfolder or subdirectory exclusive for Switzerland in CHF with differentiated prices. I would like to know if you have to install wordpress also in the subfolder, so a wordpress installation for each woocommerce plug or can you manage the two online shops even with a single installation? And in any case, what do you recommend for a better performance?