@jiangcaiyang you can use these hooks for plugin activation, deactivation and uninstall
action:plugin.activate
action:plugin.deactivate
action:plugin.uninstall
You can hide composer (red button with +) and chat (user avatar as a button) windows by clicking on their respective buttons in the bottom right corner of the screen. Click again to show window and see your own content.
Try to browse forums when composer is opened. This is one more possible action to do.
