With my extensive experience in C Programming, I assure you that I am the right person to handle this project for you. My career has allowed me to build a wide range of skills, particularly problem-solving and attention to detail, which are key for dealing with Google Sheets and Scripts.
To address your requirements, I will convert the button image in column I into a fully functional button that simultaneously removes all filters within the specified ranges. Additionally, I will ensure that the drop-down menus in cells D5 and D7 remain usable while preventing any accidental deletions. This will give you full control while maintaining the existing formatting.
Notably, I understand the importance of scalability. Therefore, I will take into account your need for these adjustments to be replicated across different months' sheets. And lastly, for the content paste range D12:G1000, I'll ensure it retains a consistent format of Arial 9 with center alignment.
My name is Saim and it would be a privilege to work on this project with you. Given your detailed requirements and my strong suit as a C Programmer, I am poised to exceed your expectations. Let's collaborate on this project and transform your Google Sheets.