At present the tools offer basic functionality for arranging parts. These will evolve in future to support more complete support.
Figure below shows the toolbar displayed to manipulate parts in an assembly
Assembly toolbar becomes visible when you open an assembly for editing.
You can switch to part design mode by simply making a part active in the feature tree
How to use tools
Move Tool
Select one ore more parts/sub-assemblies to move
Click on the 'Select Direciton' Button, and choose a face or an edge to select direction
Start dragging selected part
When drag stops, a dialog pops up to allow you enter final value
Click on green check button to accept the change and continue, or click on the orange 'X' to close the dialog
Rotate Tool
Select one ore more parts/sub-assemblies to rotate
Select rotation axis
Either use the slider or enter the angle directly in the text box
Click on green check button to accept the change and continue, or click on the orange 'X' to close the dialog
Snap Tool
Select one ore more parts/sub-assemblies to rotate
Select 'Snap To'
Then choose the target part with respect to whom 'Snap To' will be interpreted.
Click on green check button to accept the change and continue, or click on the orange 'X' to close the dialog
Align Tool
Select one ore more parts/sub-assemblies to move
Choose one of Quick Align option
Select the alignment direction
Click on green check button to accept the change and continue, or click on the orange 'X' to close the dialog
Assembly Script - The assembly script is an advanced option and will be available in future release.