Here is another method, that I’ve used sometimes: Make a square brush, 64x64. Click Edit on the menu, drag down to Scale, and enter two identical scale-values. E.g. X 5, Y 5. This will make the brush five times bigger. Look at screen. Does the brush overlap the map? If no, hit “z” (undo) and enter new x and y values. Use this brush for the minmaps and maxsmaps values. Delete the brush.
This method will always create a perfect, squared brush.
All in all, it is stressful and hard work, to get these minmaps and maxmaps coordinates right. And time-consuming. (Sometimes it takes, like, 2 minutes - or more.) Hey, program gurus, is it possible to make the editor more noob-friendly? Maybe a new version of the editor, that enters these coordinates automatically?
Or else… I want my money back.
Or a cookie.
// L.