[SOLVED] Adding the sidebar on right side

Hi. I have created single article pages (see events on main menu) and would like each of these pages to have a right hand side bar. How can I choose that as a layout option? See here: limoscene.co

Hi there,
sorry that seems to be a Joomla system question.
1.) Create a module and publish this module on module posiiton "sidebar-a" or "sidebar-b"
2.) Now you have to assign the new created module to your menu item where the module should be shown

Problem solved.

Thank you so much!