Is your feature request related to a problem?
Like transaction_ignore_urls, this was the most requested feature in the upstream agent, it's closed as you can use a sampler such as this
Describe the solution you'd like
Add the RuleBasedRoutingSampler into the sampler chain of the agent, and provide an option in central config to add/remove paths
Describe alternatives you've considered
DIY sampler
Additional context
The upstream agent has added the RuleBasedRoutingSampler as a dependency in 2.21.0 so as soon as we point at that, look at the feasibility of using it - I haven't checked if you can change it dynamically which may be a blocker