Please refer to the following documentation when using the PlanAhead tool.
NOTE: This answer record is part of the Xilinx PlanAhead Tool Solution Center (Xilinx Answer 37100). The Xilinx PlanAhead Tool Solution Center is available to address all questions related to the PlanAhead tool. Whether you are starting a new design with the PlanAhead tool or troubleshooting a problem, use the PlanAhead Tool Solution Center to guide you to the right information.
12.1 PlanAhead General Resources
12.1 PlanAhead Tutorials