Allow for disabling tiles
It would be nice if you could click on a tile of the poster to disable/enable the tile in the resulting PDF. Sometimes the raster image will have a sliver left on the edge or bottom.
Do you mean disabling pages from printing? It takes a bit of thinking about it (or printing it several times), but you can figure out which pages not to print an then not print them.
If you have a PDF editor, you can remove those pages outright, or replace them with blank pages.
If this isn't what you mean, you need to elaborate on your suggestion, it's not clear what you're asking for.