Place your cursor in the location where you want a Bootstrap Collapse Accordion section to appear
Select the Bootstrap Collapse icon in the toolbar:
This will open a dialog box to input your items:
Select the “Add New Item” button to add more items.
Select the OK button to return to the editor.
Double To edit Bootstrap Collapse items, double click on the items to make changes.Bootstrap Collapse block in the editing pane:
You will not be able to view the content of the items until you Save & Preview the page.