User Guide

Tutorial 2 - Modifying
Version 5.0 55
The Save/Recall button is used to save and recall selection states for the
model. This is very helpful for large models that require more than just a few
clicks to obtain a particular selection state.
The Lock Unselected button, when pressed, causes all currently unselected
items to stay unselected, no matter what other selection buttons are pressed, until
this button is pressed again. This is useful when you are working on just part of a
model, say one particular floor in a multistory building, and you need to select
and unselect different parts of that floor and you want the rest of the model to
“stay out of the way”. Just unselect the entire model, then use Box Select to
select the floor, then press “Lock Unselected” (the button changes to ) and
the rest of the model will stay unselected until you press “Lock Unselected
again to turn it off.
When you are finished trying all of the selection tools make sure that the Lock
Unselected button is up and looks like this:
Now that we know about the selection tools we can use them to help modify the
model.