If you're connected successfully and there are no issues with pulling MLS data, you will see a set of MLS fields that must be mapped and connected with Estatik fields. The first thing you should do is to confirm the most important field, i.e. 'MLS Property Unique ID', which will be found and assigned by default:
You can scroll down and assign every field one by one or you can type required fields' names in a search bar and quickly find those ones which you need:
You can also create custom fields in the plugin directly on this page by clicking on + icon:
