Regarding your query, you have to install the plugin ‘TP Education’ and ‘Woocommerce’ as these are the recommended plugin which will help you get new sections in Admin Panel as well. You can find the recommended plugin following the path Admin Panel > Plugins.
Also, you can make customization as per your requirement from the customizing section following the path Admin Panel > Appearance > Customize.
Further about your query related to font types and sizes which is not the feature managed by theme. If you want to change size of the font, you can provide us a screenshot of section where you want to have changed, we can help you with CSS to some extent.
Hope this helps.
If you have further queries, let us know.