=== Hide a certain colum in the BOOKINGS Table ===
.pagetypebookingslist .bookingtable tr > *:nth-child(X) {display: none;}
Examples:
.pagetypebookingslist .bookingtable tr > *:nth-child(1) {display: none;} will hide the first column which is 'Number'.
.pagetypebookingslist .bookingtable tr > *:nth-child(10) {display: none;} will hide the tenth column which is 'Email'.
=== Hide cancelled bookings in the BOOKINGS Table ===