Hello IvI_joe,
now it works. Thank You very much for your two hints! I saw that boxmaker.py in the download-file boxmaker.inx file is uddated now into lower case.
york

So you got no "Tabbed Box Maker" item inside laser tools, hmm, I've not met this problem before, could you please tell me what your set up is ie OS, Inkscape version. I have the same problem: Only "Laser Tools" and a very small box but without "Tabbed Box Maker". I use...