For the Gimp Guru RobA,,,It's a pity I can't seem to make the tiled pyramidal tif images directly in gimp. I can open them but trying to save it results in Gimp demanding to merge the layers, Xnview can save a multipage .tif but the required file must be tiled and multires, the only programs I've come across for that are ImageMagick and VIPS, I'm hoping that once the .tif is prepared for the server I'd be able to replace the highest zoom tiles with ones showing additional labels or with some labels removed (Island and country for instance which will be larger) that'd allow for villages and towns etc. to be more readable and uncluttered when you zoom in.

My idea is to hide and show different label layers in Gimp save multiple versions, generate two or maybe more sets of tiled pyramidal tifs and "shuffle the deck" in Xnview. Any ideas for that or a plugin/script for Gimp to do it directly via Gimp would be helpful. I've searched the plugin repository but can't find anything to do it.