This datatype is basically an update of the Macro Picker (Thanks to Richard Soeteman for the source tothe Macropicker Datatype). It allows you to select multiple Macros and pass in any parameters. I have used a similar interface to the MultiType DataType.
** If you have MultiType DataType installed you need to get the latest version which is in beta, so only install on a dev site **
Once you have installed this datatype Create a new datatype of type Widget Picker. You can set a limit on the number the editor can use, and which macros the editor can see.
Then add the datatype to a document.
Feedback would be much appreciated!