When the plugin authenticates successfully with CRM, then by default, all layouts of an accessible object will be synced to the WordPress side.
You can also sync specific object layouts. This feature will reduce the heavy load on the sync process when there is a long data of object in CRM.
So, if you have updated only the “Case” layout in the CRM side, then you can sync only the “Case” object in WordPress by selecting the Case object from the checkbox.