I'd like to add some 'standardised' blocks of text to my finished cave maps, and a convenient way seems to be to use the map-comment command to add the text to the title block. As far as it goes the following works fine. FILE THCONFIG- GreenlinkAnnotationLayout layout GreenlinkAnnotationLayout map-comment "REFERENCES:\ <br>Discovery and early exploration of Greenlink cave\ <br>NZSS Bulletin Vol 7 No 100 p500-510\ <br> \ <br>Original Maps of Greenlink cave\ <br>NZSS Bulletin Vol X No XXX pXXX-XXX" endlayout GreenlinkAnnotationLayout END FILE I'd then like to be able to concatenate similar blocks of text at compilation time. Trouble is if multiple map-comments are used, then the last one executed overwrites the other. Why concatenate them? For example; The thconfig file(s) producing output files for a particular cave all refer to the above layout for that particular cave. This works fine. I have three caves, each with their own files. Now I'd like to reuse the data at the next level up, without maintaining duplicate copies. The data for these three caves is contained in a directory with a master thconfig that produces output files for the whole system of three caves. Rather than having duplicate copies of the map-comment layouts containing the text above, I'd like to refer to the same layout each time, ie concatenate the text along the lines of. layout. copy GreenlinkAnnotationLayout copy MiddleEAnnotationLayout copy SwissMAnnotationLayout .endlayout Trouble is each one overwrites the previous. Can I concatenate the map-comment field? Is there a better way to do this? Thanks Bruce