Hi @c3D,
You can change the direction of objects travelling along the path, using Scripting. See Scripting-only features for details.
I have also requested tooltips for CoBlocks in the past - thanks for raising this again.
To specify coordinates, right-click or double-click on an Item, go to Transform and enter the coordinates.
In terms of selecting objects inside a larger object, you could hide the larger object temporarily in the Scene Inspector, using the hide/unhide eye tool.
Hope that helps! Let me know if you have any further questions.
Geoff @ TechLeap