A minimal example can be found in Here
Can anyone explain the following line funtion?
#+COLUMNS: %45ITEM %10BEAMER_ENV(Env) %10BEAMER_ACT(Act) %4BEAMER_COL(Col) %8BEAMER_OPT(Opt)
The worg says
for a column view of options and configurations for the individual frames
But a sentence can't make me understand. To do a test, I change the number in it but finding the output frame doesn't change.