First start up Era for the PC(download v6).
Then press Start to go to the login screen where you are able to connect to different servers.
On your left bottom there is a button saying 'Start' press that then click Instal Packages.
A window should pop up. On the left you will find 'Levels and Graphics' When you click that you should see 'Download'.
If you have done all the above without any problems, log in to the Era server.
Again on your bottom left you will see start. (if not click the blue arrow on the bottom right).
A new window pops up. On the sidebar you will see 'Era Development Kit' Download it.
You now have download the Graaleditor and Era_Development_Kit.
Go to your Graal folder and search for Graaleditor. When you found it open it and then open a level by pressing the little map on top.
Go to your Graal Folder then open the folder 'Levels' search for 'Era_Development_Kit' open the 'era_tileset (open this).nw' DO NOT CHANGE ANYTHING THERE!!!!!!!
Then go open a new level press Save as name it era_whateveryouwanttocallit.nw and you're all set.