Hi David,

I never used the package before but looking at the screenshots you will get an extra option in your datatypes tree after you installed it.

So to get this working you will need to do the following steps :

1. Install the package https://our.umbraco.com/packages/developer-tools/parameter-editor-generator/ using the umbraco package or nuget
2. Create the datatype for nested content you want to use as a datatype (maybe you already have it)
3. Right click on the datatype you want to use as macro parameter and click generate parameter editor.
4. Enter a folder name where you want to save it in. Will be located in App_Plugins
5. Optionally restart umbraco (depending if you are in debug mode or not)
6. Start using the new parameter editor on your macro's

Also don't forget to include the newly generated folder in App_plugins in to your source control if you are using that.

Dave