Please see these two resources:
1. the video at https://seniorleads.com/training called Six Ways to Control Lead Flow
2. See these ways to control lead flow at https://seniorleads.com/leadflow
To select zip codes, use these tools - we recommend that you select zip codes with a population not exceeding 400,000
https://seniorleads.com/zip-code-search/
To switch your Seniorleads account for the system where you have a central zip code and a radius to selecting specific zip codes you desire. https://seniorleads.com/option-b
.