I have a null node within a subnet node, both have the same parameter folder in the form of multiparm block (list) containing a integer parameter.

I can use hscript to link the folder name field of the null node with the same field on the subnet, i.e. as I change the number of the integer items within the folder on the subnet, the same will be reflected on the same field on the null node.

I want to ask how to do the following, i.e. each time I create a new integer item on the subnet node and change its value, the same will automatically happen on the null node within the subnet node ….

Hope I explained my question clearly.

advices are greatly appreciated in advance!

Why you need this? We always need opposite of this.