Can't add blocks in my template...

I am using the Bailard template for this site I'm building for a ministry. I have used Squarespace in the past to build a website for my business and I was able to customize nearly everything with the blocks and such. Now with this template I'm using for the client, it only lets me add sections (which aren't as customizable as I'd like them to be... plus there aren't a ton of options). Anyways. I tried switching templates near the beginning of the building process and it wouldn't let me because it said the Bailard template has all features so I don't need another template to get different features. I keep looking and looking for how to add blocks but I can't find anything. I would be okay with it (because I've nearly finished the site). But there are a few elements I'd like to add (search bar, etc) that are available on the sections things that have me using. Just wondering if anyone else knows where to access the blocks or if I can't use blocks on the template? Also if I can't use blocks... how do I get certain elements that aren't available with the sections thing? 

Add Blank + (or any sections in above list) > Then you can insert Block.

Ah so there wasn't a plus sign but I did press the lines between each element and the blocks came up!! Thank you so much!