Option to pin node placement relative to Merge Node

For an end user it is not clear what logic drives the order in which nodes are connected to Merge Node when working outside of the Node Graph view. With more complicated node trees I found myself checking if the Transform node is the last one for example as some actions in the viewport put other nodes after it.
Maybe this area could use some clarification in the docs?
A band-aid solution I'd be fine with is to pin nodes to Merge Node so no other node can be placed between them:

首先，将 Node Graph 视图中的节点连接顺序与 issue 中描述的 Merge Node、Transform node 的行为以及 viewport 操作进行比较。确定预期结果是用于阐明排序逻辑的文档，还是用于固定节点的选项，然后围绕其中一种结果定义完成标准，并使用更复杂的节点树进行验证。