If you are in the server manager and go to File Manager of your game directory on the server
Step 1
If it does not Exist
Create a new Folder in the ShooterGame folder called ServerGrid
Step 2
Within this folder take the export from the ServerGrid map editor downloaded from the grapeshot games wiki
Step 3
Name it in the following Format
CellImg_X-X.jpg
Replace the X-X with the corresponding grid coordinates
If it is a single server cluster map the images would be named accordingly
A1 Map - CellImg_0-0.jpg
If you had more than 1 server in a cluster then name accordingly
A1 - CellImg_0-0.jpg
A2 - CellImg_0-1.jpg
B1 - CellImg_1-0.jpg
B2 - CellImg_1-1.jpg
Step 4
Upload these jpeg images to your server and the map should show after a reboot (this will show grey when you are browsing servers until you discover the map, once you have discovered the map then this will be uncovered)