# Show periodic images

Creates copies of all particles and bonds to visualize multiple images of a periodic system.

## Parameters

Periodic images (X,Y,Z)

  Enables the replication of the system along the three edge vectors of the simulation cell. You can specify how many times the system is copied in each direction.

Adjust simulation box size

  If activated, the simulation cell size is extended to match the size of the replicated system.

Assign unique particle IDs

  If this option is activated, the modifier assignes new unique IDs to the particle copies generated by the modifier. Otherwise the duplicated particles will have the same identifiers as the original particles. This may cause problems with other modifiers (e.g. the Manual selection modifier), which rely on the uniqueness of particle identifiers.

## Restrictions

Note that the modifier does not assign new molecule IDs to replicated atoms. The copies will have the same molecule ID property as the original atoms.