This is a follow up to this bug: https://dcpomatic.com/mantis/view.php?id=1383

I added a comment after it was fixed but probably it was never read - I think these issues still hold:

Thanks. Though there is now another issue: if I save a file as "certificate" (without extension), it gets saved as such. Now when I save another file as "certificate", it alerts me I already have a file like that, but it does not get shown in the file picker (only .dom files are shown. I think either 1) always add the .pem extension or 2) also allow non .dom files to be shown in the file picker.

a couple of another very minor points:

a.1) For the default name, should not it maybe include the Creator and Issuer fields from Preferences>General?
a.2)Also adding the word "leaf" to the "export KDM decription certificate" might make sense.
a.3)And the advanced submenus do not have default names (at least there the leaf/intermediate/root in the filename would make a lot of sense to me).

b) And regarding that, maybe Creator should be set by default to DCP-o-matic if this is to be trusted: https://cinepedia.com/packaging/ ).

c) Oh, and regarding issuer and creator, maybe the followint line in the manual:
With these controls you can set the issuer and creator strings that will be put into the DCPs which you create.
should read something as:
With these controls you can set the issuer (typically you or your organization) and creator (application used to author the DCP, i.e. DCP-o-matic) strings that will be put into the DCPs which you create.

d)And I also believe that the line in the manual
<DCPIssuer> — Creator text to write into CPL files.
should be
<DCPCreator> — Creator text to write into CPL files.

(I hope you also see comments on closed bugs)