Trigger action after sidebar opens

Hi,
I am using your plugin on several sites and it is just perfect.

Now I am struggling with following and I could’t find anything in the docs.

After the sidebar opens (it is fully opened), I need to automatically scroll down to active menu element (menu is higher than screen). I have this function already done and using it on other site (without your sidebar, firing when document ready).

Is there a way to trigger a jQuery function after sidebar is fully opened? I tried to use click event on sidebar toggle button, but it doesn’t work properly.

Could you please suggest me anything?

Thank you very much for any hints.