Select an engineering connection from the specification tree.
![](../EngineeringConnectionImages/st001NLS.png)
The engineering connection is displayed in 3D.
![](../EngineeringConnectionImages/gw022.png)
Click Edit constraints
select .
In our example, an offset and an angle constraints are displayed.
![](../EngineeringConnectionImages/gw023.png)
Pass the cursor over the offset constraint.
A manipulator appears at one extremity of the offset arrow. You can drag it in order to modify the offset.
![](../EngineeringConnectionImages/gw024.png)
Click the offset value in order to
modify it with the keyboard.
![](../EngineeringConnectionImages/gw025.png)
Set the value offset to 30 mm and press Enter.
![](../EngineeringConnectionImages/gw026.png)
Click the offset dimension or extension line in order to
display the balloon.
![](../EngineeringConnectionImages/gw027.png)
Pass the cursor over the left balloon icon.
![](../EngineeringConnectionImages/gw028.png)
This displays available balloon commands for constraint activation.
Click outside constraints in order to exit the edition mode.
![](../EngineeringConnectionImages/gw029.png)