Hiding unhiding columns

Hi gurus,

I have a few spreadsheets I am using daily. One spreadsheet per customer (it contains up to 20 sheets, 1 sheet per product). All I need to do is to combine all those spreadsheets into one. But in that case it is very easy to get lost as you are handling huge amount of data. So, I made one spreadsheet (one sheet per customer with all products in it). I want to have a button for each product which would unhide the relevant to the product columns. I have made a very visual dummy example. It will tell you more.
Any help will be much apreciated.

Thanks a ton guys!