Hey bro, how's it going?
Your question is interesting, I confess I hadn't thought about that possibility. For now, the answer is no. I follow the principle of linearity of points for this plugin; a parent node can have several child nodes, but each child node can only have one parent node.
It would be possible to have multiple parent nodes if I hadn't added a whole activation visibility mechanism, which depends on a switch system and conditions. But the way the plugin is now, it would be complicated to maintain multiple parenthood and the visibility system, since the criteria would become very confusing. It would be possible to customize it for your specific case, but we would probably have to give up one of the validation rules.