You are trying to Import / Export layouts in Fiori, however you are not finding these options.
SAP Cloud for Customer
Reproducing the Issue
- Go to User Menu.
- Start Adaptation.
- There is no option to Import and Export Layouts.
This functionality was replaced by a new one called Transport Management, where you can manage the transfer of the objects between different tenants.
Starting from release 1911 you just be able to use Transport Management to transfer layout changes between tenants.
Please, refer to following documentation to understand how Transport Management work and how to use it:
Import Export Layout; Content Transfer; Transport Management , KBA , AP-RC-UIF-FLX , Page Layout & Key User Configuration , AP-RC-UIF-FLX-FRW , UI Adaptation Framework , How To