I use Max 2017 and FP 6.12.
That's the function I'm talking about
To place individual objects
Go to the Create tab in the Command Panel and choose iToo Software from the dropdown list.
Click on the Forest Pack button.
Check Mode > Custom Edit
Click in the scene. Each mouse-click will create a single tree. (is it possible to click several times ?)
Right-click to exit create mode.
Switch to the Modify tab for any subsequent edits.
actually the custom edit mode works.
I do not have to use the software properly.