# Update Elements, Update Parameters, Update by DC

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**Update Elements** - will update inserted elements by Instance configuration, by the configuration which was used on selected Host. It will not look into the Configuration saved on computer in Configuration Files Location.

**Update Parameters** - will update only special parameters that have # and ## symbols in front. See more about special parameters in relevant Help page. It will not update location of inserted elements.

**Update by DC** - every time Smart Connections is used, the tool will add the shared parameter "DC" to the Host element and write name of configuration that was used:

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So if you use **Update by DC**, the tool will read the name of the configuration from DC parameter and will find this configuration in Configuration Files Location and reinsert elements by its settings.