Large projects benefit from the ability to import tag definitions from Excel. The 64-bit version handles massive CSV files (hundreds of MB) that would crash 32-bit versions.
To run the 64-bit Designer effectively, the following specifications are recommended: aps designer 6.0 64 bit
During custom installation, ensure that "64-bit Runtime" and "64-bit Simulator" are selected. The default "Express" install may only install 32-bit components for backwards compatibility. Large projects benefit from the ability to import