Having embarked on drawing up a larger cave system with data from various sources, I discovered that PocketTopo sketches brought into the drawing editor just get names local to that sketch (e.g. 3.3, 3.4, etc.) but my project builds up the centreline from multiple centreline surveys. So the actual name of the stations in my cave is like 3.3@subsection.dataset.cavename Thinking there must be a solution to this, I searched the wiki, and found it (Thanks Bruce!). I can use the -station-names option on my scraps in the sketch to say what the full name of the station should be. But my station names do not need a prefix (it is already set from the xvi file by the editor) and with a bit of experimentation I discovered that to omit the prefix I have to put a pair of double-quotes as the prefix. This works, but is there a neater way to do it? e.g. -station-names "" @ShortDryWay.swildons means my station with -name 3.3 will be treated as 3.3@ShortDryWay.swildonsin the scrap and this is what my station in the complete cave centreline data is named so it works. It just seems unintuitive to have to give a blank prefix this way. Bruce's example also includes author and copyright options on the scraps. How does Therion use these? Or are they just allowed on the scrap options but not used in any generated output? While reading Bruce's excellent advice pages on data structures I spotted some places where more recent developments or ways I work make things easier since the section was written. So I've added a tip on getting data off PDA via memory card, and a link to Andrew's TopParser application to this wiki page: http://therion.speleo.sk/wiki/doku.php/paperless#data_transfer_from_pocketto... Footleg