Yaskawa Ladder Works Operation Manual - Manual (Page 28)

2.2 SELECT
2-11
2.2.3 Select Multiple Objects
There are three kinds of multiple object selections.
Select Objects in Continuous Range
Select two objects away with the Shift key pushed with the mouse.
The object selected first is the beginning point, and the object selected next is the ending point,
and then all object are selected between them in continuous range.
<Key Operation>: Shift + Arrow Key
Select Objects in Non-Continuous Range
Select two or more objects away with the Ctrl key pushed with the mouse.
The specified objects in non-continuous range are selected.
<Key Operation>: Ctrl + Arrow Key (decided by Enter Key)
Select All Object
All objects except the program comment and END instruction are selected.
<Key Operation>: Ctrl + A or Select Edit (E) - Select ALL (L)