antv G6创建边时是否支持连接到combo,modes:{type: "create-edge", trigger: "drag"},如何设置呢 #3732

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

创建流程图，从开始节点连接到的判断节点组

What does the proposed API look like?

有相关demo

<!-- generated by antv-issue-helper. DO NOT REMOVE -->