How to insert custom Bootstrap block from templates into TinyMCE and CKEditor
All your custom block templates are organized into collections that you define and are accessible through the block gallery dialog.
Open the dialog by pressing the "+" button near the place where you want to insert your Bootstrap block and choose the block. It will be immediately inserted into CKEditor/TinyMCE.
Creating custom block template collections may save a lot of time for you and your colleagues by automating monotonous actions and guaranteeing that correctly styled (possibly brand-styled) block templates will be inserted into your website content.