There are few plugins you will have to install to be able to import the Instant Sites layout.
This is the plugin that holds all the Instant Sites layout. You will be prompted to install this plugins as soon as you activate the Munk WordPress Theme. Without this plugin you cannot import the Site layouts.
Header Footer Composer for Elementor
This is an add on plugin for Elementor that lets you build custom header and footer for your site using Elementor Page Builder.
Munk has 100% support for Header Footer Composer for Elementor and lets your build any type of custom headers and footers.
Elementor Page Builder
We use Elementor to build the custom page layouts that you see on Instant Sites. Without having this plugin installed you cannot import the Instant sites layouts.
Besides these, there are other plugin that we use on site by site basis as and when required. Like a E-commerce design would have WooCommerce plugin and a Digital Products site will be using Easy Digital Downloads.
When you install Munk Sites and go to import a site, a list of all the required plugins will be listed on the Import Page.