Before uploading GCP coordinates to MAPEO, please ensure that your coordinates follow the required template. If your .csv file is ready according to the template, you can navigate to your location of interest in MAPEO, and scroll down in the left-hand side panel to find Manage GCPs.
Click on Upload GCP Points, and navigate to the folder which contains the .csv file with your GCP coordinates. Once you upload the GCP points, you should see them appear both in the left-hand side panel, and in the MAPEO viewer on the right-hand side. From there, you can adjust your location boundaries if needed before finalizing the location.