确定交互式表视图头中的节索引

I have a UITableView with an interactive section header created with a custom action using an UIButton. When this button is pressed a segued is performed to another View Controller via prepareForSegue. However, the section selection is not available in this function. Is there a solution to make a section index available? Since section is already available in viewForHeaderInSection, could it in a way be passed to prepareForSegue?I have a UITableView with an interactive sectio