How to link multiple child table to a single link field?

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1

Can someone please tell me how to link multiple child table to a single link field?
Is it possible to do with custom script?

2

Do you want something like Table Multiselect?

3

no, I don’t want to select multiple options. I want to link multiple doctypes to a single link field. Suppose I have 4 child tables and each child table has a field name ‘name_of_stream’ and I want to fetch this field name in a single link field.