I have to deliver a project, please help me.
According to the picture I posted
Cell A1 has a checkbox,
if it is True, the checkmarks of the cells {B2, B7, B10, B14, and similar to it…} must also be True.
And all the rows below A1 are hidden
But
If A1 checkbox is False, the checkbox of the cells {B2, B7, B10, B14, and similar to it…} must be False.
and all rows (2,7,10, 14, …) are displayed.