Component instances are the actual network objects which are displayed and documented in Pathfinder and are always based on a component definition.
The Number of Instances field can be found in the properties of a component definition. It shows if any and how many instances of the component definition exist at any time and can be used to access and manage a list of all these instances.
Please check the number of instances of a component definition, before making any changes to it, to make sure you are aware of and want to change all of them.
You can manage the component instances by clicking on the ”…” button in the number of instances field.
When you edit or delete a component definition, it influences all component instances present in the active network that are based on that definition.