Moving Components 
The Move Component 
tool lets you move individual components in an assembly file
or in a drawing file of an assembly. The SolidWorks eDrawings Viewer ignores mates,
allowing full degrees of freedom. You can also move subassemblies as a
unit.
To move components:
Open a CAD or SolidWorks eDrawings assembly or drawing file
of an assembly.
Click Move Component
(Components tab
) or Tools, Move Component.
In the graphics area, select a component and drag
it to a new position.
-
Click Move Component again to release the tool.
Moved components remain in their new
positions if you save the file. If you close the file without saving,
all components return to their original positions the next time you open
the file.
To return components to their original positions:
To return an individual component to its original
position, in Move Component mode:
To return all components to their original positions
from any mode, click Home 
or View, Home.
To move sub-assemblies:
Click Move Component
or Tools, Move Component.
-
In the graphics area, right-click a sub-assembly component and select
Move <sub-assembly name>.
The sub-assembly name is highlighted in the Components
tab.
If the sub-assembly contains nested sub-assemblies,
the menu item Move Subassembly
appears. Select a sub-assembly from the list and click to place it. The
Move Subassembly menu lists all
the sub-assemblies that the component belongs to, in the order from the
immediate parent to the highest parent.
Drag the sub-assembly to a new position.
To return sub-assemblies to previous positions:
To
restore a child sub-assembly to the current position of the parent sub-assembly,
execute Undo Move on the child
sub-assembly. To restore the parent and all its child sub-assemblies to
their original positions, execute Undo
Move on the parent sub-assembly.