Invoice Downloader

Today I have an HTML/ASP page that allows me to download invoices for my locations. The tool is a tree view and I dont think it is intuitive to my team. This is what I would like: - The columns Period, Stores, Categories to be independent of each other versus Parent/Child. If someone tries to download something that is null give them an error - for my locations we have areas - that change from time to time. I would like to add that hierarchy to the page - when downloading I would like an option to keep the folder structure or download all files into one folder. - select all/deselect all for each column - ideally HTML5 so my team can see from their mobile Test data is at [login to view URL] user: test pass: Welcome1@