Fill in a region with agents.
|activeSites||CoordinateSet||The set of sites that are candidates for being affected by this Process.|
|description||AgentDescriptor||A template for the agents to be scattered by this process.|
|maxTargets||Integer||The maximum number of locations to be affected by each occurrence of this process. Setting maxTargets to -1 results in an unlimited number of targets.|
|period||Integer||Waiting period between occurrences of this process. period=0 means do only once.|
|skipFilled||Boolean||If true, occupied sites are ignored during fill operation. If false, filling over an occupied site will result in an error.|
|start||Integer||Time at which to begin executing this process (specified in integration cycles).|