[Robin Wragg]

I have been experimenting with making templates (canvas sizes and units).

How can I delete those no longer required, and rename others?

[whpalmer4]

User-created templates are stored in ~/Library/Application Support/OmniGraffle/Templates, and you can simply delete or rename the files. Use the Finder's Go->Go to Folder... command, and enter that pathname to go to the folder in a single step.

[whpalmer4]

You can also create folders in that folder to organize your templates.

[Robin Wragg]

Thanks for advice, I have managed that, but still have a problem.
I have a 'rogue' template that I cannot get rid of. It shows when I look in the Templates using OmniGraffle, but not shown when using Finder. It appears that it is a backup or autosaved copy of another template. (Don't understand the inconsistency between the packages looking in the same folder.)

[whpalmer4]

Interesting. I'm not sure what might be going on there. Have you quit and reopened OmniGraffle? If you still have the original template file open in OmniGraffle, you can cmd-click on the window title and get a list of the folders showing where it is. You might also see if a freshly downloaded copy of OmniGraffle still has the rogue template—maybe you somehow managed to save the rogue template into the application bundle next to the built-in templates?

[Robin Wragg]

I apologise that I can't explain how, but I have managed to get rid of the 'rogue' template, so I now have the different variations I expect to use. Thanks.