Gallery Macro - option to display all images of page

Hello,
would be glad seeing following improvement implemented:

In the Gallery Macro it is possible to display all images currently attached to the site the macro is included. The problem is that everytime you have to browse to the official wiki site of the macro, copying the velocity code from it and paste it to the macro.

Isn't it possible to integrate this feature in the macro. Or at least to give an option to add this code automatically beside listing the source images?