Questions about the Stories plug-in

[波普]

Hi,

I want to modify the code of "$:/_ sq/stories/templates/storytagglemenu" to realize the function of displaying sidebar in "$:/plugins/tiddlywiki/menubar/items/toprightbar": 

when I activate the display of the right column, the sidebar will be automatically hidden, and If I hide the right column, the sidebar will be displayed automatically.

Could someone please tell me how to modify it? 

Thank you!