常见问题/故障排除哪些 Procore 工具支持"工种"？Procore 中的"联系人"是什么？哪些项目工具支持此概念？What are configurable fieldsets and which Procore tools support them?What are the default statuses for T&M tickets?What tools are supported by Rates?Which fields in the T&M Tickets tool can be configured as required, optional, or hidden?