[xwiki-users] How to insert name and date (signature, ~~~~)?

Hoi, in Mediawiki it's possible to insert one's name and the current date quite easily with four tilde characters: ~~~~. Is it possible to do this in a convenient way in Xwiki, as well? And if so, how? I think it should be possible by creating a macro. However, I would appreciate if inserting the signature would be a simpler tag than: {{sign/}}. meillo