Till now there is no macro support in HippoEDIT but there are Code templates

If you need to insert current date in the document or current file name or Registry value you can use Code Templates.
Create and Code Template or for some specific syntax or for Default syntax (to have template available every where), assign to it name and
Shorcut, enter text you want with any built-in tag and ... it works.
For example, you would like to insert current date when you edit text document:
- Open Code Templates setting for Plain Text
- Add...
- Key = date, Description = Current Date, Shortcut = Ctrl + Shift + D
- Ok
- Enter such code for new template: Today %Date%
- Ok
- Now try to press Ctrl+Shift+D somewhere inside of text documen
- Result: Today 04/17/09