Userscript to block book meals via ChCh booking system
Step 1: add Chrome extension Tampermonkey
Step 2: install the following two userscripts: Execute Script & Book Hall
How to use: Right click anywhere in Chrome, hover mouse over "Tampermonkey", and click "Book Hall". Tah-dah. Note: Any previously open tabs must be reloaded since userscript was added in order to work!
Also, buttons have been added to the bottom of the block book page itself if you prefer seeing what goes on.