Can I add custom properties to TortoiseSVN's list of properties in Add Properties dialog?

Our team is using some user-defined properties on our SVN repository. When I go to add a property to a file using TortoiseSVN, I right-click on the file and choose TortoiseSVN / Pro开发者_如何学编程perties. I then click the New... button and get the Add Properties dialog. At the top of this dialog is a drop-down list of pre-defined properties labeled Property name:. The list includes properties such as svn:needs-lock, svn:eol-style, etc.

Is there a way I can add a couple of my own custom properties to this list? I am using TortoiseSVN 1.6.2.

I've googled this, and saw a proposed patch on the TortoiseSVN mailing list, but to my knowledge it hasn't been implemented. Thanks.

Edit: I know I can manually type my custom properties into that box, but I'd like them to be saved for next time.

You can use the properties tsvn:userfileproperties and tsvn:userdirproperties on a parent directory to customize the list of properties.