Yaskawa Ladder Works Operation Manual - Manual (Page 63)

2.7 EDIT OBJECT
2-46
Selecting Objects in Non-Continuous Range
1.
Select the beginning point in the non-continuous range.
2.
Select the ending point with the mouse and press the Ctrl key.
< Key Operation >: Ctrl+Arrow Key
3.
All objects are selected between them in non-continuous range.