You're looking for the Motorola CP140 programming software link.

is widely considered the final stable release for this series. Operating System:

If you’ve recently acquired a —a rugged, reliable portable two-way radio often used in construction, security, event management, and hospitality—you’ve likely discovered a frustrating bottleneck. The radio itself is a tank. It offers clear audio, solid battery life, and simple operation. But to change frequencies, add privacy tones (CTCSS/DPL), or adjust power levels, you need the one thing that Motorola doesn’t advertise: the programming software .