>>164
The specifications of the extend command are as follows.

About the extend command that makes cannon possible,
donguri=post level/1
donguri=post level/2

option to add a cannon target upper level as follows

donguri=post level/1-Upper level of cannon target
donguri=post level/2-Upper level of cannon target

For example, the command to allow only users below level 10 to fire the cannon (i.e., users above level 11 cannot fire the cannon) is as follows

donguri=post level/1-10
or
donguri=post level/2-10