I used Backup/Restore to transfer my settings to a new computer. I ticked Current in every section, as well as specific wordfiles, the project list and uedit32.ini. Everything seems to have transferred correctly, except my custom templates (which UE appears to have stored as vhdl93.tpl.xml on my old machine).
I copied this file to the application directory on the new machine (C:\Users\xxx\AppData\Roaming\IDMComp\UltraEdit), and verified that the Templates section in Advanced->Config->Directories points to that location. However, no VHDL templates appear.
I have found how to get UE to recognize the template file I copied: it needs to be in directory language under whatever the Template directory setting points to.
However, I still would like to know why Backup/Restore did not handle this automatically.
Disclaimer: Yes, I have read the readme file (which contains nothing but a list of features and website information). I have also tried the UE help, the website FAQ and Forum Search before posting this question.