cold shoe

Hi Guys, I have purchased an L bracket for my new A6600, this one https://www.amazon.co.uk/gp/product/B0822CLXDQ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1 I did not release that the bracket has lots of 1/4 thread holes for attaching additional hardware, so as any one used cold shoes on...