that -mod editor thing does not work
You're right. It's all a trick.
But really, it's not too difficult.
1) You get the editor download, extract it to C:\Program files\Blockland (Or wherever it's installed..).
2) Hold right mouse button on 'Blockland.exe', drag it to a blank space in your blockland folder. Let go of mouse, click on 'Create shortcuts here'
3) Right click on shortcut to blockland.exe. Go to 'properties'.
4) In the 'target' box, paste this exactly
"C:\Program Files\Blockland\Blockland.exe" -mod editor
Unless you have it installed somewhere different, in that case, replace it
accordingly.
5) Run shortcut, profit.