Mk3 engine under tray

[ntm1275]

I intend to do my first oil and filter change on my Mk3 this weekend, but as it's cold and dark outside at the moment, I was wondering if someone can tell me if the whole under tray has to be removed to drain the oil or is there a hole or panel that can be removed to save removing the whole tray

Also, does the drain plug need a special tool to remove it (spline or hexagonal allen key type) or can a spanner or normal socket be used

Same with the filter really - spline, hexagonal or standard socket/spanner

Any help will save me going out tonight in the dark with a torch