从输入中复制文本按钮

I have multiple records. Each record has an input with unique text prdefined and button to copy this text to clipboard. Everything works fine as long as i have only one record. In case of multiple records, only the first one seem to work. I will need help on make it work with many inputs and buttons, any advice? Another question is if is possible to hide an input (type='hidden'). I tried but it doesn't seem to work.I have multiple records. Each record has an inp